Theory of extremes

Fill up the blanks:
I am extremely .............

it could be friendly, shy, honest, short-tempered, calm, understanding, committed to so and so cause etc etc

My theory is that the opposite of any extreme quality is also there in the same person. Thus, people who are extremely profit minded might become totally charitable one day. Example: Bill Gates of Microsoft started the Bill and Melinda Gates foundation.

People who are so honest that they will not accept a bribe, or jump a signal or cross a yellow line might end up creating huge scandals. Example: The honest US legislator who was caught in a sex scandal.

People in the social sector whose heart bleeds for the poor, might do unimaginably selfish deeds that ordinary people will not think of. Imagine someone asking "Whats in it for me?" when faced with a problem involving poor people. It is frequently heard in NGO circles, which is supposed to have noble people.

The reason behind this theory is probably that the outward quality that we see in a person might be a repulsion of the inner opposite quality. Thus, the person is constantly trying to stay away from the opposite. When the guards drop, and under certain circumstances the inner person emerges and we see the opposite quality.

The best way to avoid this swing is to be moderate. Be honest, but moderately so. Its ok to cross the yellow line if there is no other vehicle in sight. Be selfless, but moderately so, its ok to demand for a reasonably good salary for your work and to do things to pursue your career.