I had actually been wondering about this recently. People define a psychopath as someone with no empathy, and then jump to "therefore, they have no morals." But it doesn't seem impossible to value something or someone as a terminal value without empathizing with them. I don't see why you couldn't even be a psychopath and an extreme rational altruist, though you might not enjoy it. Is the word "psychopath" being used two different ways (meaning a non-empathic person and meaning a complete monster), or am I missing a connection that makes these the same thing?
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.