In one of my chats with a freind he didn't understand why every hyper rich person is completely insane.. and swear they wouldn't be like that with a billion dollars..

Money does change things.. Perhaps this is an outlook on our general state of society. But try doing something like dying your hair an odd color and then going for a job interview. Society wants conformity at the cost of identitiy. Stay in your fucking box.

but with billions.. The box does not exist.. and it's unlikely anyone who has spent their lives in boxes would know how to handle that mentally. So of course you'd do some crazy shit. Build a fibreglass hamburger house to blindly piss off the people in the HOA. drive around fast cars and have lawyers on retention to pardon you of any and all laws.. you become the thing you hate unless you donate it all keeping just enough to live a modest life. but that takes self-control again..
@S-Config also because only certain kinds of people become billionaires. Not only you have extremely lucky with the birth lottery, you also have to live and grow up with people that are mostly disconnected from what a regular person's life is like. Also every rag-to-riches story has a catch, or an extremely lucky place and time to implement an idea.