Good ELI5 answer. The “push” to do good comes from the feeling of thankfulness that you don’t have to take a death penalty from a wrongdoing, someone else is taking it instead.
Another take: Imagine when a friend takes you for a dinner treat, you’d be thankful for them that they paid for your food (and the food is not necessarily free, someone actually paid for the food). You’d at least try to be nice to him, as a gesture of thankfulness, and you wouldn’t want hurt their feeling after they took you for a treat. Deliberately or not.
Good ELI5 answer. The “push” to do good comes from the feeling of thankfulness that you don’t have to take a death penalty from a wrongdoing, someone else is taking it instead.
Another take: Imagine when a friend takes you for a dinner treat, you’d be thankful for them that they paid for your food (and the food is not necessarily free, someone actually paid for the food). You’d at least try to be nice to him, as a gesture of thankfulness, and you wouldn’t want hurt their feeling after they took you for a treat. Deliberately or not.