Asklemmy

Probably neither. As far as I can tell rich people are completely unremarkable. Some use their money for good, some for evil (and the media loves that) while most just buy tons of stupid shit and enjoy the good life.

I guess the media thing is the real answer. You don't hear much about Bernard Arnault because he's boring, while Musk is walking clickbait.

Both but I believe to a certain degree a person can have a certain amount without it corrupting them. Beyond that point, everyone is corrupted. There are no truly benevolent billionaires because a person must engage in various questionable practices to keep growing their wealth at such an exponential rate. Basic market economics dictates that a business entity competing for a limited market share must repeatedly find new ways to make more profit by using strategies their competitors aren't. This includes but is not limited to skirting around regulations and laws, and somebody unquestionably runs those companies.

I also think most people massively underestimate the impact that conditioning puts on a person's outward demeanor, but that leads into a deeper tangentially related discussion. Regardless, people are complex creatures.

—To put it simply, to become a billionaire or even a typical* megamillionaire a person must invariably step on someone else.

*The only exception I can think of are SOME lottery jackpot winners.

Perhaps you are asking a variation of the "genetics vs. environment" question. If so, there are many answers on the subject. Also, money is somewhat attractive to almost everyone, to some degree, for practical reasons.