No, most people would not.

Most people would share, or hit a point and think “OK, that’s enough for anything I really want personally… I’m gonna try and help out now…”

Nobody in their right mind should want a world where they are privately wealthy, but publically impoverished.
Because then, you have no security.
Someone will always be gunning for you.
You can stave it off by layering brute force, and laws, but there is no such thing as 100% secure. Eventually something will make it through, and wreak havoc. And because all you now care about, over everything, is whatever paltry “wealth” you’ve managed to secure, the catastrophe is magnified orders of magnitude. You have no real friends or community to turn to, nobody who would support you if you didn’t have the most, and the rules didn’t make you “king” because of it.

It’s a sickness.