It's really interesting to apply these explanations of chimp-behaviour to human group dynamics. I have actually been in a situation similar to the first Complex Interaction in this video not so long ago and I recognized that same kind of reconciliation/grooming behaviour in my friends. It really was a confirmation of evolutionary morality for me. When it comes to conflicts in a group, we really are not so different from chimps. It's just that we rationalize our actions afterwards.