I argued that the underrepresentation of women in leadership was not due to their lack of ability or motivation, but to our inability to detect incompetence in men. When men are considered for leadership positions, the same traits that predict their downfall are commonly mistaken—even celebrated—as a sign of leadership potential or talent.

As this book will show, traits like overconfidence and self-absorption should be seen as red flags. But instead, they prompt us to say, ‘Ah, there’s a charismatic fellow! He’s probably leadership material.’ The result in both business and politics is a surplus of incompetent men in charge, and this surplus reduces opportunities for competent people—women and men—while keeping the standards of leadership depressingly low.

This link between perceived confidence and competence is important. Although women are assumed to be less confident than men and some studies have shown that women appear to be less confident, a closer look at the research shows that women are internally confident. In fact, men and women are both overconfident—even if men are still more overconfident than women.

Overconfidence is the natural result of privilege.

Why men are more likely to be narcissists (sorry, guys, it’s just science)