Empathy

Huginn: They don't have it, you know. And if they do, it's something they have to learn.

Muninn: What? Manners?

H: Empathy. They would kill less if they valued life more.

M: You underestimate the lessons of free market history. Life is so valued by them that they can't think of anything else better to take, control and destroy.

H: Do you think he cares?

M: If he doesn't, we'll have to do it for him.