By what measure is a (hu)man?: On mutants and vampires...

[Winterous]

This raises an important point: Just because you CAN harm it does not make it good.

I... Don't really understand what you mean.
What isn't necessarily good? The thing being harmed, or the action of harming it?

The point I was making is that a player-controlled human character can, by very definition, be subjected to harm, and as such a standard AI may not cause or allow harm to one.