The good news is that $100M+ is such a ridiculously large number that humans can't really do a good job of imagining what that means, so the psychological impact is less than if you found out your friend was worth $5M.
If my startup had netted me over a hundred million dollars I would start to have real concerns about making new friends. It would be incredibly difficult to know whether someone wanted to be friends genuinely, or if in some way it was really about the money (and celebrity). This would make my pre-existing friendships that much more valuable to me.
So i think it would be natural and they would not be interested in your money.
And can definitely ruin the friendship, if every few weeks a request for 300k to fix some stuff comes up.
Think of it this way. You were both serfs. He now got crowned king. You're not going to keep hanging out with a king anyway, might as well try to get him to make you a minor noble. It can change your life and the worst thing that can happen is you stay serf.
As americans say, why leave money on the table?
The difference in wealth is so large that the poor friend's life can be easily changed.
It would be smart for the rich guy to change his friends' lives without being asked, if they were friends and still close enough.
It's also true that people will also overestimate their friendship with the rich guy because now the king can easily change your life.
There is no way someone who suddenly becomes very rich will keep most of the past relationships.
From close friendships to the bulies from highschool, almost everyone will try to reach out and try to get some of that cash.
Why not? Same as in cheap friends who are interested in a free lunch or something.
Friendship happens when there is a mutual past-time to share, a similar culture/mindset and little to no business conflict. It also require that the other party has no friends already, or doesn't have a family that makes him busy.
All in all, it's very hard to make any friends when you are older whether you are rich or poor.
> It would be incredibly difficult to know whether someone wanted to be friends genuinely, or if in some way it was really about the money
I guess what the other commenter was implying is that they make friends with other ultra-rich people?
He will have no human worries, no human problems.
You probably can't be friends with someone who is effectivelly a different species.
EDIT: also just with 1m usd you're set for life and never have to work and be poor again. So in a way, he doesn't need 99% of his wealth. So if he is not using at least some of it to help people and the world, he's not a good person.