"This is consistent with the finding that leaderless groups have a natural tendency to elect self-centered, overconfident and narcissistic individuals as leader

"This is consistent with the finding that leaderless groups have a natural tendency to elect self-centered, overconfident and narcissistic individuals as leaders" "It's almost eerie how effectively talking with confidence works." It may very well be that all other things being equal, a little bit of over confidence is quite a positive indicator of actual success, as opposed to having 'less confidence'. 'Confidence' usually comes along with a bunch of other attributes. If you 'believe you can succeed' - you may be likely to try harder. A differentiating trait of 'successful people' is that they 'believe they shape the outcomes of their lives' - whereas others don't believe it is so. (Obviously there's a lot just to that). When you 'believe in yourself' - it's easier to 'have faith' in your own vision - and others take that as a strong signal of authenticity, which is helpful. Nothing would ever happen were it not for at least a little bit of irrational exuberance. Not that this justifies blow-hardism.