"Ways of Seeing" and "Coming to Terms"

I found “Ways of Seeing” by John Berger to be much easier to understand than Benjamin’s piece. It really hit home the point that all works of art, photos, paintings, sculptures, and film, are all greatly influenced by perspective. I also saw this theme running through the chapter in “Rewriting.” There it is mentioned that in refuting a point, the essay writer should take biases into account. It helped me to make the connection between biases in literature and perspective in art. Both are essentially the same thing. Then I started thinking about how bias/perspective was used in “Rashomon.” Perspective can be seen through the retelling of the samari’s murder, or suicide. Each character in the film saw the event with their own biases from their station in society or gender. But what was the director trying to say about perspective? A major theme in the film seemed to be hope in humanity. How does perspective enter into that?