What you are discussing is the perception of morality. Man can damn near rationalize anything he wants as being moral. Abortion and slavery are good examples.Morals are effectively standards. They exist independent of man.
I'm not so sure, Ding. Who but man uses morals? Certainly horses don't. Dogs don't. Man judges morality. Morality may come from the heart, inspired by faith, driven or guided from within, but just as a tree falls in the woods, without mankind, of what need, use or value are morals? Morals are guidelines and goals set by MEN I think.