These men are more than powerful enough to go against Trump

Was just discussing this with my wife last night — are they?

This time around, there is zero oversight, no checks and balances worth mentioning. Donald Quixote has pretty much carte blanche, complete power. If they went against him, he could fine them (their companies), levy crazy taxes or tariffs, kill government contracts and subsidies, and nobody could stop him. Even if a non-evil judge halts an executive order, it will eventually get to the Subpreme Court, get overturned, basically no more than a delay.

I understand that they could still Do The Right Thing™, throw themselves in their sword in protest, but they’re all publicly traded, must have Boards. Most (?) of these men can just be fired if they go against the shareholders.

Could they really do anything that would be more than a symbolic gesture?