Idiocy in the private sector exists, but it is continually being pared away. No such fail-safe mechanism underlies and supports government enterprise. Imagine if safety protection at airports were run under the free market sector, and one firm, the ACME agency, paid great attention to nail clippers and black grandmothers, but ignored garbage cans and Arab males of a certain age. There is a name for such companies, and the name is "bankrupt." They would be eliminated, forthwith, through the competitive process.
It does not matter that our homeland security people wear uniforms. Or must pass civil service types of exams, where they answer theoretical questions theoretically. Or are forced to attend training sessions, where they see films of past events. There is simply no automatic mechanism that continuously improves quality, as occurs every day in the market place. We do not owe our reasonably good pizzas, shoes, and bicycles to geniuses. Rather, to this weeding-out system.