Re: "Mega Corp" proves command and control can work!
Even the largest "Mega Corp" only has a tiny fraction of the economy. A handful of products and customers.
There is also the concept of incentive alignment. When the shareholders and managers of "Mega Corp" get it right, they get rich. When The Bureaucrat gets it right, there is only his usual take home pay, which is the same even if he gets it wrong. So why work hard to try?