The biggest factor is that evolution made me to be a social creature. As a product of that evolution, I was also socialized to be empathic. Notion of consciousn

The biggest factor is that evolution made me to be a social creature. As a product of that evolution, I was also socialized to be empathic. Notion of consciousness is not necessary to create and explain morality. BTW - We call people who will treat you like a screwdriver a psychopath (or bureaucrat :P). And people like that exists, they apparently do not estimate what it "feels like" to be you. Maybe because it does not feel anything like to be them? Or maybe consciousness is just property of existence and interaction, in the same way a color charge is a property of a quark, and so consciousness has nothing to do with high level behavior. There are also people with lock-in syndrome. In most extreme cases they can not interact in any way besides maybe changing patterns of their brain activity in response to what's happening. We can try to establish trough contrived communication protocols if their responses make sense, sometimes just to ask if they even want to live like that. There are also people in persistent vegetative state, where we are not be able to establish clear communication protocol. The whole thing is probably a multidimensional spectrum, depending on what damage these people suffered. So, it may be extremely hard to tell if they are aware and whether we should kill them / stop their life support or not.