I always assumed this was given information

"Atheists and agnostics are more driven by compassion to help others than are highly religious people, a new study finds."

Atheists More Motivated by Compassion than the Faithful | LiveScience

The article made me think of the above speech that Joss Whedon gave a couple of years ago about secular humanism. This is not to say that I do not know a good number of people of faith that are caring, but then again, I do not know a lot of "Good Christians" that are evil, venal, and awful.

Humanists are driven to help others because we know that all we have is each other.