My own belief is that most people are trying to do their best. It doesn't mean they have no nasty side, or that they don't have a bad temper, or that they have never done anything they feel ashamed of. But fiction operates on people waking up trying to be horrible, and I don't think most people are trying to be horrible.
Julian FellowesMy parents came from different backgrounds. My father's was grander than my mother's, so my mother had... to put up with the disapproval of my father's relations.
Julian Fellowes