Bougie and Snobby attitudes. Rude and uppity. Partying, drinking and bribing others to do their college work. 100% extremely slim. Sleeping to noon and planning who to prank, who to marry, where to shop and how to spend their parents millions. "College Mean Girls"
The current answers show clear bias and irrationality. Not all sororities depict such attitudes. I've been in a few.
For some, it's merely about partying, an elitist attitude, and conformity. For others (the ones that I were in), it's more about volunteering, making friendships and lasting bonds, having fun (which included partying), but no snobbish attitudes were there.
Some are good and some aren't. You just have to find out which ones are as such.