Putting problems at the center of our decision-making changes everything. It’s not about the self anymore. It’s about what you can do and how you can be a valuable contributor. People working on the biggest problems are compensated in the biggest ways. I don’t mean this in a strict financial sense, but in a deeply human sense. … Happiness comes from the intersection of what you love, what you’re good at, and what the world needs. … What big problems are you trying to solve?

Oliver Segovia, To Find Happiness, Forget about Passion (HBR)
(emphases mine)