A man must be both stupid and uncharitable who believes there is no virtue or truth but on his own side.
Oftentimes what happens is that the writer understands one character, but they don't understand the other one, and the other one ends up not being written as well.
One of the best animated films I've seen come out of Disney was the Tarzan movie. I wasn't crazy about the story or the design on Tarzan's face, but the traditional animation was spectacular.