Isn't the difference more about collateral damage? In the battle, you have at least an inkling of the person you are shooting being an enemy, if you are ordered

Isn't the difference more about collateral damage? In the battle, you have at least an inkling of the person you are shooting being an enemy, if you are ordered to bomb a house and find out that a load of kids were killed as well as the target, it becomes much more traumatic. I have zero military experience so just guessing!