These are great points. I just want to mention the even scarier connection between drugs such as cocaine being used not just as a recreational drug but as weight control. Models like Kate Moss who promote the waif physique also are also poster children for drug use. Check out this blog where (either accurately or out of context) exposes the rampant drug use of people in the fashion industry.
http://drugnewsvault.blogspot.com/2005/10/cocaine-catwalk.html
I just want to say that personally it is upsetting to think that all the little girls who want to grow up to be fashion models are unknowingly wanting to step into an industry where serious drug use is not just accepted but encouraged.