Power, Money, Influence, and Celebrity
I believe that these are the four basic food groups of ambition. These are not necessarily fungible, though a savvy operator can generally translate one into the other.
Power: The ability to command. The President of the United States is the most powerful person in the world (with the possible exception of Dick Cheney).
Money: The ability to buy. Bill Gates is the richest man in the world.
Influence: The ability to persuade. Peter Drucker is probably the most influential thinker in the business world.
Celebrity: Michael Jordan may be the most famous person in the world.
Each of these exemplars of their particular type possesses the other factors to a lesser extent, but their ability to exercise those factors is far more limited.
Where do you stack up?