Pope Francis is supposed to have referenced the Gospel of Mark in which non-Christians who do good are said to be acceptable. Stemming from this he is supposed to have said that Atheists who do good are acceptable. I certainly hope he did. If he did, however, I suspect it was only in order to convert them. Per the article:
Being an atheist is fine, as long as you do good, Pope Francis said Wednesday, rocking the minds of less tolerant Catholics.
Of course his concept of what is good is bound to be a bit twisted. Opposing the political activities of the Catholic church and trying to bring it to justice for its criminal activities are probably bad things, in his eyes.