Psychological egoism and ethical egoism

Human beings put so much value on other people's interests. They find that if they satisfy their hunger for helping others, they (in turn) will have satisfaction for themselves. This was shown in Mother Teresa's giving to others without taking anything back. However, as with everything else, there are exceptions. I know many people (i.e. car salesman ha-ha) that have only their interests in mind when they are taking action. This brings us to …

…the interests of the entire group. Genius is not a group effort. I do not believe Mozart or Van Gough could have made such great works of art if someone had been looking over there shoulder saying, "no, no, that doesn't look/sound good at all." Even though on average humans will get the better for themselves by looking out for the greater good, we will never see anything that is a work of genius.