> Would you date someone really hot if she worked in a supermarket, and wasn't all that clever?

I would not care about her job, but a large difference in cognitive ability makes a relationship quite hard in my experience. Not only is it harder to grasp/explain complex situations, it usually also comes with stark differences in emotional control and interests. It will also make arguments one-sided, as the more intelligent party will usually be able to argue their position better, which will lead to frustration for either them (if the partner is refusing to change their opinion regardless) or their partner (if they give in, unable to argue).

I'm sapiosexual, so really hot and not all that clever can't co-occur from my perspective. But education is orthogonal to intelligence and really not a factor. I'd probably find e.g. an intelligent woman raised in a hunter-gatherer society more attractive than an equally intelligent woman educated in an academic field I don't respect.

Is she fun? Is she honest? Does she have the same values as me? Is her family very healthy and long lived? There are so many important factors you're leaving out. Not to mention that beautiful people often quickly rise to higher paid positions. Even if not so clever.