While I agree that it should be more than looks that we're judged on, a lot of those young ladies used the earnings from that kind of work to fund their education.
So when they are stopped from earning money based on their looks, it prevents them from (or makes it harder to) fund their future careers.
I think they should be encouraged to make money from their looks in order to be able to make a career from their brains at a later date.
I wish I'd thought of it when I was young and fit ;)
Oh.. hang on...