Most people getting into that group donthat by focussing their time on making money. This usually requires quite some dedication, which is a character trait you can't simply replace for going to the beach.

There are exceptions, but it's rare. And then there are the ones who got spoiled as a kid and were lucky with some decisions, like making some good real estate deals in Manhatten or finding the right partners to build some online payment service, who never learned about responsibility.

Flaunting your wealth attracts supporters in this day and age. People *like* rich assholes. Its fashionable, or at least it was in the 2010s. The pendulum of society is finally swinging back and demonizing this outrageous display of wealth but we're still in an age where people literally worship wealth. Not the "figuratively literally", I mean literally literally worship as per the prosperity gospel (https://en.wikipedia.org/wiki/Prosperity_theology).

Its not just Elon Musk, but also Arkk's Cathie Wood and Bill Hwang.

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The outrageous displays of wealth is proof that you've achieved God's good graces. Its basically Mandate of Heaven (Chinese concept) except the American version of it.

Once you make $999,999,999.99 dollars, congratulations you have won at life!

All future income you make beyond $1B goes to helping society.

You should probably get a say into where the money goes (so it aligns with your values, whatever those may be) but that's it. You are done enriching yourself personally.

I kind of like that (although I'm sure plenty of people hate it).