If it makes you feel any better, there are some of us who aren't in a social soror that think you guys are pretty cool!
I'll admit that I've known some pretty hateful greeks, but I've known plenty more who are just awesome girls that I'm proud to have as friends. I'm in a service org and I'm very active, I've been an officer five times. I've also worked about thirty hours a week all through college, so I felt timewise I couldn't commit to a social sorority too. (Although I would have loved to have done it all!) But my sisters that I have are the best friends that I've had in school! I know how important they've been to me, enough so that I want to bring our org to other campuses so that other girls can exerience the same thing.
My point is, while I believe there are some greeks that I would never be friends with, there a lot of non-greeks that I would never be friends with too. I respect anyone who has found a group that they feel a part of and are happy because of it. I think that the people who are so anti-greek are the ones who never had that feeling of being a part of something that was so much bigger than they are, and something that is a powerful, wonderful force in their lives.