This is not even close to being true. Elon Musk's net worth is $850 billion. In order for that to be 1 in 200 of all wealth in the US, it would mean US wealth would have to be $170 trillion. For comparison, the World Bank estimates the entire world's GDP in 2024 to be $111 trillion.
He, in fact, owns a much larger share than 1 in 200. Though it's also obvious to anyone watching that most of this money is fake and comes from the fact that he holds a lot of assets which have extremely inflated valuations (i.e. are a bubble with no underlying economic justification).

I promise as someone extensively familiar with MediaWiki who even administrates an indie wiki that this comparison makes absolutely perfect sense, hence why I posted it. And I think you're reaching to make the OP's meme seem to not make sense when it clearly does under the correct interpretation.