In politics there are two kinds of sociopath: likable and unlikable. The likable politician has learned how to behave like a normal person and gets by under a veneer of oily charm. A sociopath who can act like a regular person will occasionally apologize, not because he feels bad about something he's done or said, but because it's politically advantageous. The unlikable sociopath survives by intimation and fear. When forced to apologize for something, the unlikable comes off wooden and insincere. The unlikable politician should never apologize. The better approach for the politician who can't fake contrition is to deny, blame others, or claim some kind of victimhood. Since a sociopath cannot conceive of doing anything wrong, this approach is at least sincere.