I strongly approve of the idea. Of course people who hire are also interested in other traits besides intelligence and conscientiousness. So I propose that the course also have a requirement of dressing appropriately (in a formal business suit, for example) every day for "class", and tests of etiquette and general pleasantness.

A possible limitation I see is that a certain "style" or attitude is often needed for a given field. This is often unstated, and just something you have to notice. One of my professors and I were talking about working with corporate recruiters. She mentioned that recruiters are often noticeably more attractive than average, and in my experience that is true. I don't know why, but almost every recruiter I've met has been a very attractive woman.