It's arguable that domestic violence is less cold and more passionate than the characteristics you're describing. I understand there are cold sadists, but speaking to the archetype.

Additionally, in the case of a bigot, the outcomes involving subjects of prejudice may be less meaningful to them even at a subconscious level. Coldness and bigotry can coexist, and certainly produce emergent results.

Also, that the best outcome of using surgeon who has a history of domestic violence is that they're so disassociated from the world, that beating a loved one doesn't matter is a really strange argument. Perhaps the argument is there isn't a better way, but damn.

I used to not be sure about robot surgeons, now I'm pretty convinced.