In society's definition of beauty, for those class of beautiful people (celebrities for instance), they work especially hard at looking beautiful. I would guess

In society's definition of beauty, for those class of beautiful people (celebrities for instance), they work especially hard at looking beautiful. I would guess a female celebrity spends a lot of effort on her hair and makeup and has a personal trainer, dietician, etc so that she looks beautiful. A "smart" person on the other end of the spectrum I would imagine spends little or no time on "looks" once they get past a certain threshold of neatness and cleanliness because they simply don't care that much about how they look. That's doesn't affect their sense of self worth as much.