And then there are the people who take one value and press it so hard that it makes their whole world view all twisted. The value might be unselfish but the way they handle it makes them intolerable to other people. I am talking about the absolutists here. Those guys who hate keeping animals in cages so they release them, and the animals die because they never learned to survive in the nature.
So, what I am saying here, the key is to have a wide base of values, and to not try to force it to crystallize into something definite.