It's a question of fitting into roles. Human beings, especially intelligent ones can be manipulated to do horrible things if they can be convinced that they can

It's a question of fitting into roles. Human beings, especially intelligent ones can be manipulated to do horrible things if they can be convinced that they can tie their identities to a good role. Like a steward of a race, for instance. If you can adorn that role, there are certain actions that conform to it. Loading undesirables onto trains is valid for a steward of a race. Manipulating courts to save democracy is valid for a steward of democracy.