For some it’s a professional thing, for some it’s family, some are inspired by love and others by immediate results despite what the cost is (e.g. the person who invests in a program because it claims immediate wealth). The point is, we are all wired differently and so we have different things that move us to action.
For me it’s my family and my health. As long as those two things are taken care of and are not lacking then I’m happy and know I’m on the right path. What about you?