@MrsPramm - Well, crowding teeth is a fairly modern problem in terms of our species. The theory goes that we've been gradually developing smaller and smaller jaws, probably as we changed our diets. I've also heard people suggest that we have evolved to look more and more child-like in general primate terms, with small jaws, big heads and big eyes, because we are such social animals that it's better for us to have these features to invoke sympathy in each other.
Because evolution isn't a perfect process, our jaws have been getting smaller and our teeth haven't, and probably never will since there is no evolutionary pressure on that feature now that we have other ways of taking care of the problem.
So if you have crowded teeth you can, theoretically, claim to be more highly evolved.