In particular, there is a relationship between time prefere…

In particular, there is a relationship between time preference and morality. A willingness to defer gratification today for a better tomorrow is a key factor in the preference for good relationships over exploitation. Every day you defer gratification that you could achieve by exploiting your friends--because you know you would lose them eventually. There is a great benefit to being part of society because of the potential for specialization and strength in numbers. In order to obtain that benefit, one must not behave as an exploiter or else society will want to banish you. Thus, I see morality as abstraction of the principles that lead to good relationships with friends. It is like a friendship with society as a whole. If you are a short-term thinker, you won't worry about being banished so you will be willing to act against society. People with a low time preference will act like they want to increase the friendship of society--in other words, make everybody more valuable to each other. Exploiters will not like that idea, not only because they don't like long-term thinking but also because it will result in better identification of exploiters, which would increase their chances of being banished.