I don't REALLY think you are comparing helping fraternity men pass out drinks to pnm to working at a soup kitchen, are you?
I have this image of the homeless being helped, and fraternity boys . .. not needing it. And for what it is worth, I did a great deal of volunteering for a chapter of Sigma Chi, but I did not become a little sister. Why? Well, even then my sorority frowned upon it, and because I wanted to do what I did because I wanted to do it - not so I could wear their letters. I'm glad, 33, you had a good experience. I'm sure there were many groups that were above board and did not take advanage of the girls. But there were many who did. At any rate, there's no sense getting into a debate as the question has been decided.
So bring on the little sister group memories, all you Belles and Sweethearts and Little Sigs.