In business, people are held accountable. In Washington, nobody is held accountable. In business, people are judged on results. In Washington, people are measured by their ability to get reelected.
The best way to make money is not to have money as your primary goal. I've seen great people come into the business world primarily motivated to make money. Almost without exception they failed.
Most people give up just when they're about to achieve success. They quit on the one yard line. They give up at the last minute of the game one foot from a winning touchdown.