You can see the bad-apple problem in a study of NBA basketball teams—a setting where players who lack prosocial skills stand out as self-centered and narcissistic. Psychologists coded players’ narcissism from their Twitter profiles. Yes, I’m flexing, and no, I couldn’t find a shirt. When I look in the mirror, all I see staring back is greatness. My biggest regret is that I’ll never be able to watch myself play live. If teams had many narcissists or even one extreme narcissist, they completed fewer assists and won fewer games.
