You could instead focus on some sort of personal goal, but if you are actually doing that you won't care how much money someone else has.
Luckily you were not that shallow or self-deceived and realized that living a humble life and taking the time to work with your students one-on-one was true value you could provide.
Unlike your father, you will leave this world having given more than you took. You will have truly empowered the children to work for a better world than the one they were born into.