There's a book by that title, "a purpose driven life.." not sure if that's the book you've read..
If a person is bless w/ resources to make a difference in the life of another/community, he should. If we live life w/ a very limited focus on ourselves, the selves, we are cheating ourselves of being the person we were meant to be. People, we are connected..int erconnected.. Your pain is my pain..my sorrow is your sorrow.. You give, lift another, you do what you can to make the world a better place.
so, yes, very true.