Comment by idle_zealot

It follows from a few premises. The point of creating/allowing private companies to compete in a market and profit from doing so is to encourage them to innovate via competitive pressure. If you just wanted to produce well-understood goods or infrastructure then the most efficient way to do that is to pool resources and have the State do it, because they don't need to make a profit and, if not totally dysfunctional, are accountable to the people. If you let private companies consolidate power and influence then they largely escape competitive pressure and can streamline operations to maximize profits. That is, they benefit from the same efficiency the State does, but capture more of the value and remain unaccountable to the people, existing only to enrich their owners.