It's a good question. Perhaps the best question anyone can ask of themselves in relation to "why are you doing what you are doing?"
And the way to prove if it is true or not is by "reverse induction." Remove one-by-one all the supposed "fruits" (wealth, glory, honor, respect, celebrity, etc) of your labors. And determine if it is still really important to you. Or to Us.
Alan Watts ~ Egocentricity In Humanity