I'm not convinced this would be good for training. Reality is that some people are assholes. My intuition is that an accurate (representative) data set leads to a more accurate world model, and thus more intelligent AI.
Having had the privilege and misfortune of witnessing how a lot of developers think about other developers, including our younger selves, There is definitely a prevalence of assholish behavior, which was often suppressed or blunted, but may have shown up in other ways.