I think I can agree with this post that suggests that the extraordinary only arises in the midst of a lot of mediocrity. Part of the argument:
There is no point resenting mediocrity. Every living tradition consists mostly of mediocrity. If you’re going to resent mediocrity in art, just make sure you also remember to resent schools, education, childhood. The purist is a person without understanding. He hates the seedbed from which the things he loves will grow.
So, hail Salieri! And you (probably). And me (I’m pretty confident on that one).