No matter what, expressing the view "we should not be such complacent wretches" is going to make people angry at you because it disturbs the status quo they enjoy, and makes them feel uncomfortable. If you turn that discomfort into full-fledged shame or anger directed at themselves, they may actually do something about it... but there's this shell you have to get through, when it comes to this particular issue.
I was sure not to elevate myself over the other students, and said that I was indeed in the same boat =/ I think this is why my professor didn't disown me.
Since you know what reaction shoving the "truth" as you percieve it into their faces is bound to provoke, then it should be obvious to you that it's not the proper course of action, if you're aiming at making them change their evil ways.
Use a carrot rather than a stick. Making them angry will only lead to rejection of your ideas, but you can try and engage them in (civil)conversations and disputes, and entice them to accept your point of view as their own, by making it attractive to them, by making them feel good about themselves for accepting it.
How you should do it exactly, is not something that I can, or could answer, but seeing how you appear to have some spare cycles in your brain when compared to at least some of them, you should be able to think of something. The chances of success are certainly better than screaming bloody murder becasuse your fellow students are god damn idiots for thinking as they do.
A good analogy, I think, is with religious discussions - I never heard of a situation where calling the other side dumb made them convert.