^ Because he has no relevance: he is not fashionable, he is not charismatic... teh only reason why someone started this thread I guess was because he was dating Paris Hilton, and people thought that he was good-looking.
The thing is; he is European royalty, he could be the next Beau Brummell if he cared enough. He has more money than god, but I guess he doesn't acre about fashion and style at all. I remember reading he had been invited to tom ford Black Orchid fragrance release party back two/three years ago, and some journalist had asked him what he thought about the frag and the very elegant event, and his answer was 'I don't know'...
He is privileged, but obviously he doesn't care about being fashionable or in-demand.