Where I happen to live, I am surrounded by people who take every opportunity to make a positive impact, large or small. I understand the negative world view that many have, but I am fortunate...perhaps.
On a side note, and not to derail the thread, the state in which I live happens to have one of the highest proportions of atheists in the U.S., one of the lowest crime rates, and is consistently rated as one of the best and healthiest places to live in this particular country. Of course there is greed and corruption everywhere, but every day I see the positive effects of people putting forth their best effort to be selfless, generous, and loving.
It's really nice.