No one gets rich off diversification

Sure but plenty of people get poor because they don't. Hedgies will tell you that if you manage risk with diversification and other tricks you can more safely use leverage to increase your returns.

(Better yet run a hedge fund with other people's money!)

Neither do companies get rich off of increasing diversity.

In building his fortune, did Musk overlook any "marginalized peoples"?

I can't tell from reading the author's Python code.