You're not getting it are you? Do what I did with Nvidia and see how much money 80% of those companies are making.
>You'd think the theory that capitalist businesses grow to take over the world would have been repeatedly verified by now.
It's not about taking over the world. Ceos aren't twirling their mustaches with a bowler hat. It's about what it's been about for all of humanity: making sure to keep some other part of humanity down so they don't get power.
America's only had one civil war and it was purely to make sure they can keep telling black people what to do, without proper compensation. That's how important that control is to them. Businesses can die and restart, but they cannot get back lost power that way.