Photographer Karl Grobl has found his:
I was once driving in the sweltering, dusty desert south of Khartoum in Sudan with an NGO and a pharmaceutical company representative and the subject of, “If you won the lottery, what would you do?” came up between them. I sat in the back seat listening to them go on about how they would live life differently. All the while, I smiled and thought to myself, “ If I won the lottery, I would be doing exactly what I’m doing right now. Except, I’d be doing it for free.”
Found the story from VisionMongers: Making a Life and a Living in Photography by David duChemin.