I suspect these storytellers don't understand why anyone wants to belong to a sorority or a fraternity; they know these things only from the perspective of a distant outsider. But I know a woman -- a bestselling novelist -- who owes some of her success to her sorority sisters: when she was trying to find a literary agent, she wrote to one who was a member of the same sorority; the literary agent had contacts with sorority sisters in the publishing world; when the book was published, it was given publicity by sorority sisters, and other sorority sisters helped usher it to Hollywood.... This might sound like a conspiracy, but they are all so proud of her. I attended a dinner they held in her honor, and they were so tickled to be supportive of a sorority sister, they may as well have been kvelling. Many of the women in that room had never met before, but they all seemed to feel such a deep mutual affection. They seemed proud that they were part of a traditon with familial bonds stretching back over a century, and this one novelist's successes were something they all took pride in.
It was nothing like the representations I'd seen in movies. Granted, the movies show college girls and the women in that room ranged from 20 to 85, but the cinematic representations all seem to be storytold by people who don't even understand that a sorority can give a powerful sense of community, and I suspect the Charmed writers learned about sorority life from those movies. This leads viewers to ask "why the hell does Maggie want to join this dumb sorority anyway?" rather than feel torn by the dilemma; and since we don't feel the tension between Maggie's choices, we don't find ourselves identifying with her but judging her.