You always wants to improve your character by buying better armors, better weapons, helping others in quests, and level up. So if people could act like that in real life, trying to become better human beings by helping others, doing excercises to become stronger, being social and kind with everyone, learning other languages, all that stuff. Then our lifes could be healthier and better. Otherwise, we could stay in our little minds doing nothing and making our fictional character better than us.

If we could spend as much time in us as our RPG characters we could be unstoppable.