As long as karma exists, the world changes. There will always be karma to be taken care of.
Sometimes films ignore other points of view because it's simpler to tell the story that way, but the more genuine and sympathetic you are to different points of view and situations, the more real the story is.
You learn to rely on a few basic movements and use your voice to the greatest extent possible to convey your emotions. So there was a technical challenge there and a responsibility to create a character from behind the mask.