I agree the corporate lobbies are a problem. But giving the government more power just gives the lobbies more power too. We see that with insurance companies lobbying to make certain procedures mandatory. The solution is to take away government power. Then the corporations have no reason to lobby the government.

Publicly controlled = x costs + profit for politicians.

It’s a wash either way. Plus, when the government program runs a deficit the government has to print money to avoid debt which equals inflation and we all know how that hurts.