Archetypes are all over the place; in the movies, on TV, in books. People need archetypes. They need to define a person and put a label on them so that hey can better understand who they are and what they do. If someone is labeled as the villain in the story, you can’t bring yourself to admit that maybe s/he has other character traits than just being evil. Whatever that person does, s/he will never be seen in the same light as a hero. Even if a villain tries to do the right thing, the motives for doing so will be immoral; while the hero can do whatever s/he pleases.