bwaaahhhh!
You have to look at the Slave Leia in context. Sure to someone socially acceptable, such as yourself, it's just another chick in a bikini. But to a Star Wars fan, it's a chick in a bikini.
Not only is this chick in a bikini; she's subservient to a giant immobile, fat, junk food eating, tub of lard that nobody likes. It's like she's subservient to your average Star Wars fan.