Fan Casting Beauty is Bad in Sort by Tropes

Traditionally, heroes are attractive, clean, and well-mannered, and villains are ugly, unhygienic, and boorish. There were some attractive villains, but Beauty Equals Goodness used to be taken for granted by writers and producers, but a trend arose and became inescapable in the mid-1980s after the theatrical release of Revenge of the Nerds and continuing from there, which implies that the majority of good, reliable, honest, clean-cut and reputable people are behind the times, unfashionable, out of shape and uncool. Or at the very least, Hollywood Homely.