>This is a problem that all large organizations suffer from, be they democracies, dictatorships, public organizations or private companies: All types of organization, from armies to zoos are vulnerable to sclerosis, and the larger and more long lived the organization, the more vulnerable it gets.

Not only that, the larger it gets, the smaller the proportion of what gets replaced at every election. Even if we get some new Congressmen every two years, we still have all the same spies, SWAT teams, prosecutors, defense contractors, etc. And the things with staying power throw money at perpetuating their own existence, so that the Congressman dedicated to halting the proliferation of SWAT teams or reducing the defense budget doesn't stay a Congressman long enough to attain the committee assignments that would allow him to actually do it.