My (totally random) take on the situation...
A good friend of Mr. 33's moved to New Orleans a few years ago. He is originally from one of the more exclusive communities in the Western PA area, so it's not like he just crawled out of the backwoods. But he said the Society, capital "S" scene down there absolutely blew him away - he didn't believe the layers upon layers of social strata and the importance of being an "old" family. While LSU isn't in NO, I would bet a lot of women from NO go there. The Greek system is probably very connected to the social scene and there is a lot of importance on being in the "right" sorority.
Just my guess.
