High IQ does not always mean high creativity at all, IMHO. Look at computer geeks and mathemeticians ... they are dealing with numbers, facts and theories ... and can solve problems just like that but t they usually have no visual creativity ... no artistic skills. It's just a different skill ... their "vision" is different. Then, there are great business people who know how to run a business and can make a lot of money ... and then there's those people who are hightly creative in the visual arts, but loose money on everything they try. Just a different type of inteligence.
There's plenty of need in the fashion business for all types ... the creatives, the number crunchers, the detail people, the people who are good with their hands, the people who are good problem solvers and the people who can sell anything to anybody. It takes all of these skills to run a successfull business.