To summarize: being a jerk is likely to fail you, at least in the long run, if it brings no spillover benefits to the group; if your professional transactions involve people you’ll have to deal with over and over again; if you stumble even once; and finally, if you lack the powerful charismatic aura of a Steve Jobs. (It’s also marginally more likely to fail you, several studies suggest, if you’re a woman.) Which is to say: being a jerk will fail most people most of the time.
Yet in at least three situations, a touch of jerkiness can be helpful. The first is if your job, or some element of it, involves a series of onetime encounters in which reputational blowback has minimal effect. The second is in that evanescent moment after a group has formed but its hierarchy has not. (Think the first day of summer camp.) The third—not fully explored here, but worth mentioning—is when the group’s survival is in question, speed is essential, and a paralyzing existential doubt is in the air.