Eh. We should want innovation - to "let a thousand flowers bloom". But when companies start getting so big they are a detriment to society in some way, we should regulate them.
We let train and oil companies do their thing in the late 1800s - which helped society. And when they got too big and damaging in the early 1900s, we regulated them. We're on the same course again, I think.
Allowed? We volunteered for it.