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Nice Guys Finish Last. Right? Leadership and Workplace Toxicity

The Question

I wasn't supposed to hear it, but I did.


I was heading out of an elevator to attend a conference session when a group of colleagues were heading in. We exchanged pleasantries and I overheard one of them call me "the nicest guy."


It was a great compliment and left me feeling good about myself. But it did leave me wondering, am I too nice?


Case in point, I was up for a position as the first head of CS for a company coming out of stealth mode. A big role. A big opportunity. The HR leader asked one of my references if I was too nice. He cordially replied I could more than hold my own and get feisty if necessary. That was enough for them and I joined the team for an eventful 2 ½ year run.


I still think about it today, especially given our current national tone. Is there such a thing as too nice? Do you have to be a jerk to get things done? What's the Goldilocks scenario? Exploring the data reveals some fascinating, and perhaps unsurprising, results. Let's dive in.


What the Data Actually Says


First, it's worth noting that top performers tend to cluster on high conscientiousness, high emotional stability, openness, and role-appropriate extraversion according to Barrick and Mount's landmark study. Their data, and the studies that followed, show conscientiousness has the strongest effect on performance. Agreeableness is a weaker predictor of raw output, but it is not negative, and it strongly predicts good teamwork and fewer counterproductive behaviors. Translation: "nice" does not make you a worse performer; it makes you a better teammate.


So, you're a better teammate but does that translate into getting ahead? The research shows people who get ahead are disproportionately warm and driven, jerks get no measurable advantage in attaining power, and the "abrasive woman wins" half of the trope is mostly a bias artifact, not a performance reality. This all feels intuitive enough and a promising development. Yet, there is a wrinkle.


The Toxic High Performer


Let's call it the "toxic high producer". According to Housman and Minor, the toxic worker does tend to be more productive on average (as well as more overconfident, and more selfish). But their study also shows the cost of peers actively avoiding them tends to wipe out any gains from their output. In addition, avoiding a toxic worker enhances performance to a much greater extent than replacing an average worker with a superstar, on the order of nearly two to one. So the "best performer who everyone loathes" is frequently a net loss once you price in morale, turnover, and risk. I've seen this firsthand in healthcare technology and SaaS organizations. Teams tolerate a toxic high performer because the numbers look good on a dashboard or they're a perceived single point of failure. What gets missed are the downstream costs: lower customer and employee satisfaction, slower execution and stagnated transformation, and institutional knowledge walking out the door.


Where does this leave us?


Conscientious + Warm + Driven - Toxic = Success


This isn't feel-good corporate speak.


It's what decades of organizational research consistently point toward.


And it's the pattern I've seen repeatedly in the highest-performing healthcare and SaaS teams.


The challenge becomes even more complex when leadership behavior is filtered through gender expectations.


The Gender Bias Problem


Sadly, if only it were that simple for women. The encoded gender bias is everywhere, even in the trope I explore in this article. (Being "nice" for a male equates to something bad because being "nice" is a feminine characteristic.) Catalyst's "Damned If You Do, Doomed If You Don't" laid out how women are perceived as too soft or too tough but never just right, face a higher competence threshold for lower rewards, and women who clearly demonstrate leadership skills like assertiveness end up not well liked. Rudman and colleagues showed experimentally that agentic women face backlash, including shifting hiring criteria used against them. Assertive women do get it done and then get penalized in likeability and reward precisely for getting it done. Agreeable men are penalized partly because they defy the masculine stereotype of being assertive and disagreeable. So the trope punishes men for warmth and women for assertiveness. Same bias, opposite directions.


The saying is a folk myth that survives because the underlying bias is real. Jerks do not actually win. Warm and driven people do. Gallup's research across more than 180,000 teams shows the most engaged and best-managed groups post roughly 23% higher profit than the rest. The reason the myth still feels true is the likeability penalty, the same bias that punishes warm men and assertive women alike.


What Leaders Should Do


So, while exploring this has been fun, what do we actually do with it? Let's keep it simple. The data is telling us three things.

  • Name the bias. Biases are real and entrenched, so the first move is to name them and design around them.

  • Remove toxicity. Any gain from a toxic high performer gets eaten alive by the way they drag down everyone near them.

  • Reward warm accountability. Conscientious, warm, and driven are not soft words. That is the profile that consistently outperforms in customer-facing organizations where retention, expansion, and operational execution matter most.


The data isn't telling us to be softer. It's telling us to stop confusing kindness with weakness. The highest-performing teams aren't built by jerks. They're built by people who can drive accountability without sacrificing humanity.


That last line is the whole game, and it is the work I do with healthcare and SaaS teams: building customer success and revenue operations where good people do their best work, and where culture becomes an operating advantage instead of a poster on the wall.


So tell me, who is the warmest hard-driver you have ever worked for? Share their name in the comments and give them the recognition they deserve. And if you're building a healthcare, SaaS, or AI organization and trying to create accountability without burnout, I'd love to compare notes.


Be kind, be cool, get 'er done.


Until next time.


Adam Peddicord

Customer Success by Design

Healthcare AI | Customer Success | RevOps | Operational Strategy


Sources

  • Barrick, M. R., & Mount, M. K. (1991). The Big Five Personality Dimensions and Job Performance: A Meta-Analysis. Personnel Psychology, 44(1), 1-26. Link

  • Anderson, C., Sharps, D. L., Soto, C. J., & John, O. P. (2020). People with disagreeable personalities do not have an advantage in pursuing power at work. Proceedings of the National Academy of Sciences (PNAS), 117(37), 22780-22786. Link

  • Housman, M., & Minor, D. (2015). Toxic Workers. Harvard Business School Working Paper No. 16-057. Link

  • Judge, T. A., Livingston, B. A., & Hurst, C. (2012). Do Nice Guys and Gals Really Finish Last? The Joint Effects of Sex and Agreeableness on Income. Journal of Personality and Social Psychology, 102(2), 390-407. Link

  • Catalyst. (2007). The Double-Bind Dilemma for Women in Leadership: Damned If You Do, Doomed If You Don't. Link

  • Phelan, J. E., Moss-Racusin, C. A., & Rudman, L. A. (2008). Competent Yet Out in the Cold: Shifting Criteria for Hiring Reflect Backlash Toward Agentic Women. Psychology of Women Quarterly, 32(4), 406-413. Link

  • Gallup (Harter, J. K., et al.). Q12 Meta-Analysis: The Relationship Between Engagement at Work and Organizational Outcomes. Link


LLM models were used to support research, grammar, and structural clarity. All thoughts, opinions, lived experiences, and recommendations are my own.


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