Do you assume that if someone's really attractive, they must have some kind of major flaw under the surface?

For some reason, I live off this perception that justice exists among people, and (mostly) everyone is balanced. In particular, if someone is extremely attractive, I assume this must mean they are seriously lacking in other areas. I feel society conditions them to be empty and shallow, because they’re used to their looks getting them everything they want. For this reason, sometimes I don’t even bother trying to attain a very good-looking guy, because it’s like they’re just eye-candy and don’t have much else to offer. Another aspect of it is that I’d rather go for someone more average who I think I have more of a chance with. So, in a way, this thinking could all be due to insecurity, or it could hold some truth. What do you think?