Au contraire, the issue, IMO, is not one of them “not knowing” the difference between right and wrong. Very few of the NO looters, if questioned, would have been surprised to have what they were doing described as wrong.
It’s one of internalizing the importance of doing what you know to be right. To where it’s important enough to do it even when financial and recreational incentives point in the other direction.
I assume what you mean is, if your child is starving and no stores are open... let him die.