Topic for dicussion: The Fundamental Role of Government

It seems to me that there are two basic views, based on either Hobbes or Rousseau.

Hobbes: man is depraved. Government serves to protect us from ourselves and each other. (I think perhaps an extension of this view would be that government serves to protect us from our environment, but perhaps that's another subject.)

Rousseau: man is essentially good. Government corrupts man with the seduction of power. (The extension here would, I suppose, be that nature is corrupted and exploited by government.)

Within these distinctions, "government" is perhaps easily traded for "civilization."

So some questions.

1) Are these the only two fundamental views? Is everything else merely somewhere in between?
2) For me, Hobbes is obviously right. Those who agree with me here might ask: does government also enable our depravity or encourage it? Has the state, as Hobbes saw it, betrayed its purpose? In other words, how much of Rousseau's view must be taken into account by a Hobbsian?
3) Our Marxism expert weblord Lenin can perhaps answer this: to what extent has capitalism (and capitalist materialist culture) taken on the role of Hobbes' state? Does mindless consumerism protect us from our darkest impulses?