This is the second reason and some people excel is because the like the FEELING of winning.

If you must be addicted to something, make it and addiction to winning
Many millionaire in this world, still work ten to twelve hours a day to making more millions.
And it’s not because they need money. It’s is because they need the joy, the pleasure, and satisfaction that come from their “wins.” To them, money isn’t a big drive; they already have plenty. You know what it is? It’s the journey- the exhilarating feeling that comes from winning.
Most of people will say “If I had a million dollars I’d never work another day in my life.”
That’s probably why the good Lord sees to it that people who say thing like that never make a fortune. They would all just quit.