I graduated a few years back so my memory is waning, there was one person in my class of 20 I would have pegged w/ psycho tendencies. He was charming, a finance guy, and a ringleader in the class. He had been married but his wife had left him and RAN, cut off contact, took down her fb, everything suddenly--I have to think it wasn't happenstance. He told me that himself, but never gave me details. The rest I think were playing the game, but the game was nasty so I don't know what that says about their tendencies. Most were white conservative males, happily married. So one in 23. Close to this:
http://healthland.time.com/2011/09/2...e-psychopaths/
The other aspects, I can speak from my experience, the most successful among us have souls but know when to dissociate. Layoffs are tough; firings, eh, generally you've warned them many times so it's on them. I don't know what it says about me but I lack patience there and by the time I get to the firing I don't look back or feel remorse, at that point they are making my job harder.
I think if anything, successful CEOs build (superficial networking) relationships w/others. Therefore, narcissists and psychopaths who can play self-confident and superficially charming would tend to do very well. Can you tell if they are pathological? Not necessarily.
As for philanthropy, I don't think it always represent someone's intentions. Some give because it selfishly makes them feel good, some give for the tax break, some will fund a school so that they can hope to recruit good workers from there, and some are purely altruistic.
Anyway, I've wandered off topic here, so to wind back in, I have thought it is ironic that LRM was not successful because he was so offputting to others; I feel he is not a bad looking guy, had some charm to him in certain interviews, so had he been 'normal', or even a flat out narcissist he might have actually had the opportunity to be what he wanted to be; however, it's the other disorders thrown in that created the paradox we see today.