In the prisoners dilemna, you know the outcomes - mostly because the game has a short life span. In life, you don't know the outcomes since the game has no end.

In the prisoners dilemna, you know the outcomes - mostly because the game has a short life span. In life, you don't know the outcomes since the game has no end. So you never know if you've ultimately chosen the right solution. It's all about your own moral at some point.