What wealth limit are you proposing and why wouldn't companies leave for another country?
Solved by limiting the profit that can be transferred out to foreign companies/parent companies.
If a market is too big, as long as money can still be made even with a cap, a company won't leave - or if they do a competitor will spring up to take its place.
Foreign investment drops off because, hey, who is going to invest if they can take their money back out?
It's also going to limit foreign investment outside the country.
It also screws with exchange rates and interest rates because of the Interest Rate parity law: https://en.wikipedia.org/wiki/Interest_rate_parity
Haven't they already?
Besides, that might be a good thing, if corporate overreach continues to grow unchecked.