I think "death", as it were, is one central component missing in capitalism
Once a company reaches a certain size, dominance, or some other relevant criteria, I do think it makes sense for the governing bodies - on behalf of the people - to say:
"You did it! Good job. You're like a super-capitalist. Wow! Here is your reward of some insane amount of money (for the board/founder/whatever), now we'll take apart your company and forcefully make it into individual companies.
Congratulations again. You won at capitalism!"