7 years ago there were no billionaires worth more than $100 billion - today there are 18!

Pardon my ignorance. I dont follow these kind of news. BUT, why the hell is musk is no 1? What has he done? Last i heard this manchild is running down twitter, tesla with cybertruck fiasco. Is it from spacex?

I mean, zuckerberg and bezos basically create meta and amazon.