The government consists by and large of the worst elements in the entire human population. Such people are drawn to the arbitrary power conferred on people who attain control of government institutions.
Most of the time, the government is a finely woven fishing net that is designed by it's nature to be drawn through the sea of men and catch all the rusty license plates, toilet seats, rotten rubber boots and poisonous sea snakes and leave all the good fish behind.
Once established, the subconscious hunch that they are unredeemed scum causes most government employees to engage in ever more radical seizures of power over their fellow man so as to justify their own jobs, which they sense at some level are not really legitimate. The nagging suspicion in the back of their heads is that they are garbage people who probably could not get real day jobs if their lives depended on it. Even worse, this subliminal impression they have constantly sniping at them is in most cases very accurate. They can't do anything about it. As Milton Friedman once said, it is the awful burden of the knowledge of their own mediocrity that turns them into tyrants as a form of overcompensation.
Sooner or later, people given too much power are utterly corrupted by it and it is exactly the kind of person attracted to government bureaucracy who will be corrupted the worst.