Your starting to scratch the surface here. As I've said before we all judge according to the moral standard that's objective of yourself. And one really good example of the moral standard is that although we often have competing instincts, something else often tells to ignore the stronger instinct in order to do something more noble. For example, if you hear somebody who is being mugged calling for help, your stronger instinct may be to stay safe and not "get involved". Your weaker instinct might be to help. Good guy C.S. Lewis puts it this way,
But you will find inside you, in addition to these two impulses,
a third thing which tells you that you ought to follow the impulse to help, and suppress the impulse to run away. Now this thing that judges between two instincts, that decides which should be encouraged,
cannot itself be either of them. You might as well say the sheet of music which tells you, at a given moment, to play one note on the piano and not another, is itself one of the notes on the keyboard. The Moral Law tells
us the tune we have to play: our instincts are merely the keys.
Pretty smart guy eh? ;-)