To build a better world is to build a better you

Just when I thought that great social problems are beyond our scope these days, I came across an article with this small story :

God said to me, "Your task is to build a better world."

I answered, "How can I do that? The world is such a large, vast place, so complicated now, and I am so small and useless. There's nothing I can do."

But God in His great wisdom said, "Just build a better you."