It seems your idea of morality may differ from others. Your idea is not based on fact of how a person learns moral and valued ways. They are taught usually by persons of some type of faith. They are taught what is wrong or right, many of us are brought up for example man will marry a women correct? So when one marry's his own then this would not be productive. Your are not reproducing and from what you say when you learn or are taught and do not better then it is immoral basically indifferent.

Your morals are based on what you think not on what is factual. And that fact is why we all are brought up in a family whatever that might be and is when we start to learn from those persons. Not we start to toil in the soil and become productive. It starts along time before that. Standards that are set by parents usually or close relationships.