Why Do What You Do?

Stephen King said this about writing, but it seems it should apply to everything:

“Writing isn’t about making money, getting famous, getting dates, getting laid, or making friends. In the end, it’s about enriching the lives of those who will read your work, and enriching your own life, as well. It’s about getting up, getting well, and getting over. Getting happy, okay? Getting happy.”

If you are not making the world a better place than it was yesterday, why aren’t you?