Why atheists are, quite simply, superior beings

Excellent opinion piece by Slavoj Zizek in today's NY Times explaining why atheists should not be faulted for feeling morally superior in these days of Jihad vs. Crusade:

Fundamentalists do what they perceive as good deeds in order to fulfill God's will and to earn salvation; atheists do them simply because it is the right thing to do. Is this also not our most elementary experience of morality? When I do a good deed, I do so not with an eye toward gaining God's favor; I do it because if I did not, I could not look at myself in the mirror. A moral deed is by definition its own reward.

Why aren't there more atheists?