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Can Certain Personality Traits Undermine Leadership? Understanding the Dark Triad with Ernest O'Boyle

April 8, 2026 · 39 min

Show notes

When times get tough, we rely on leaders to make the hard decisions. That's why their character is so critical—it can make or break a team, a company, or even an entire organization.

In this episode, Jess Carter sits down with Ernest O'Boyle to explore the "dark triad" of leadership and how these toxic traits can quietly sabotage a workplace. Professor Ernest shares his research on how these traits often go unchecked, leading to manipulation and a toxic culture. They discuss how leaders with dark triad traits can distort data, influencing outcomes and undermining trust in data-driven decisions.

In this episode, you'll learn:

  • How toxic leadership traits impact team performance

  • The effects of narcissism and Machiavellianism in leadership dynamics

  • How to build and maintain a positive workplace culture despite challenging behaviors

Things to listen for: (00:00) Introduction to the episode with Ernest O'Boyle (02:00) The dark triad traits in leadership (06:45) How narcissism and psychopathy show up in the workplace (10:25) Leadership in high-pressure environments (14:10) Managing manipulative behaviors in teams (18:00) How organizational culture shapes leadership behavior (22:15) Ethical dilemmas in decision-making (27:30) Can toxic leadership traits be reformed?

Ernest's LinkedIn: https://www.linkedin.com/in/ernest-o-boyle-4547a729/

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