While government is growing grotesquely large let us not forget its proper role. The problem with our government system today is that it tries to do to many things that it was not intended for. Governments role (as laid out in Romans 13) is to stop evil. Even in this arena it does not do a very effective job. Yet without it our world would be chaos as Martin Luther observes:
If it were not so [that God ordained government to root out evil], seeing that the whole world is evil and that among thousands there is scarcely one true Christian, men would devour one another, and no one could preserve wife and child, support himself and serve God and thus the world would be reduced to chaos.