It seems to me that the whole point of being alive is to care for someone, and to have someone care for you.
Society is merely an expression of that. If you can fit into a group of people, then there is a sense that the people in that group care for each other.
People care most about those that they feel the most comfortable with, the people they are closest to. Noone is closer than your own children, usually.
As far as respecting forms of life, I am rather.... "weird". I respect animals more than humans, though I'm not a vegetarian or anything; I just could never hurt an animal. However, for the people I truly care about, I would gladly kill anything that hurts them.
When it comes to protecting yourself, I believe that all of this goes out the window. You WILL protect yourself however you can.
Sorry if this is isn't what you're looking for. My head's a bit insane.