Feelings and Emotions play an essential role in a moral system. If you are an Empath, you can see the reality in anyone's actions and situations, making one comprehend others' moral compass. The more sympathetic and empathetic the person, the more probable their morals are skewed toward doing no harm and ending suffering. Emotional people will also see more "gray areas" regarding right and wrong. The more sensible the person, the whiter and blacker "this is what is good, this is what is bad" the moral compass will become.