I just sold a company for 40 million USD.
What do you even do with that sort of moderate influence?
It's too little to build (or crash) world economies, and I'm too indecisive to invest a single dime in a publicly traded company. No, scratch that. I'll never invest a god-damn scent-of-sent in their game.
What the fuck man, what do I even do with this?
Maybe if I had nothing else to do, I might focus on the 'tragedy of the commons' ie. investigating how humans can work together societally to be smarter than isolated individuals, rather than stupider. Given this successful company thing, perhaps you already know a bit about that.
If you want to consider a variety of big-picture ideas https://www.effectivealtruism.org/ might be worth a browse.