Why is the fashion industry so vain?

Well, isn't the fashion industry quite the peacock? Let's face it, it's all about showing off and strutting your stuff on the catwalk of vanity. They're not just selling clothes, they're selling an image, an ideal, a dream - it's like a 24/7 beauty pageant, only with more sequins! But hey, who can blame them? If I had legs like a gazelle and cheekbones you could slice cheese on, I might be a little vain too!