I can see the argument that my experience of human interactions is a biased and incomplete sample. That's clearly true. But they are the relevant ones to my experience.
And I'm always disappointed at the bias in the human interactions portrayed by novels. They are almost invariably driven by unrealistically evil people, and the stakes are typically too high to bear any relevance to most of human life. Most conflict is between people none of whom can be well characterized as evil. There is substantial variation in peoples' values, and in the information they have, and those are the important drivers of what people do.
Damn, I should write a novel.