Never heard of trading because of emotional satisfaction. In fact I find trading very stressing, specially if it's the only source of income for you and your family. There is always the possibility of losing money, so when you have bills to pay, and you depend on your profits to pay them, it's definitely a very stressful experience. I was a decent poker player, and once I realized I was making enough money to pay my bills I decided to try it full time. It was a terrible experience, and I just had to stop. I now play poker just for fun again, and I appreciate the profit I can get from it, but I don't see how that can work in trading. It's not a game, so you can do it for an extra profit, but it's not for emotional satisfaction.
Perfectly Described the real soul behind trading. Trading is most stressing job in the world.
Approaching the statement from an economist point of view, I solely do it for money and money is everything you need and work for in the market. The more you earn, the more you are satisfied. A common man might have an altruistic nature as well and once a certain level of financial stability is achieved, he/she might step in the field of social work and rehabilitation of those who are unfortunate and have low standard of living.