"The difference is simple: one is a broader setting/political statement trope, and the other one is a type of villain. As for splitting the wicks, it might take some time, but on its own that's not much of an argument against it. "
Exactly. One can believe that aristocracy is an inherently evil institution without believing that any given aristocrat is evil simply because of his birth. Likewise one can believe a given aristocrat is evil without believing aristocracy is evil as an institution. In fact we have examples of both. Mark Twain pretty clearly believed aristocracy to be evil, at least if you take Connecticut Yankee to express his opinions. But he had heroic aristocrats like the Prince in Prince and the Pauper. Likewise, Medieval romanticists didn't believe aristocracy was evil but had black knights, evil kings and the like.