Response to Mary's "what?"

Mary asked "Can an individual's set of ethics be changed by aesthetics?"

I think the answer is unfortunately yes.

Take for example the typical high school setting. There is a super pretty girl whom everyone dotes upon and looks up to. Somebody sees her one day littering some garbage on the lawn of the school. This somebody, because of the slimness of her waist and the color of her hair, excuses the act of littering as acceptable because the pretty girl was the litterer. If perhaps the school midget, who also has a horrible case of scoliosis and rosacia, were to litter the same trash and be seen by the same somebody, the case would be unacceptable. How dare that unattractive person contribute to the worlds ugliness?!

Perhaps a handsome boy is being bullied for his feminine qualities. A typical crowd of high schoolers might see that situation as wrong, unjust. If a boy with a limp and a bad haircut were suffering the same ridicule, perhaps the same crowd of high schoolers would not have a problem with the bullying, or perhaps less of a problem.

We are shallow creatures, in general, and in this way our ethics can be affected by aesthetic properties.

Is it necessary that our aesthetics and ethics are wedded as such? Does this play an important role in our society, such as in courtship? If we overlook our spouses bad qualities because of his strong chin or her curvy waist, isn't that natural selection at work, which is "good" for us as a species? Is it necessary?