In The Guardian, an atheist makes an admission:

The correlation is so clear that it is impossible to doubt that faith and charity go hand in hand. The close relationship may have something to do with the belief that we are all God’s children, or it may be the result of a primitive conviction that, although helping others is no guarantee of salvation, it is prudent to be recorded in a book of gold, like James Leigh Hunt’s Abu Ben Adam, as "one who loves his fellow men". Whatever the reason, believers answer the call, and not just the Salvation Army. When I was a local councillor, the Little Sisters of the Poor – right at the other end of the theological spectrum – did the weekly washing for women in back-to-back houses who were too ill to scrub for themselves.

It ought to be possible to live a Christian life without being a Christian or, better still, to take Christianity à la carte. The Bible is so full of contradictions that we can accept or reject its moral advice according to taste. Yet men and women who, like me, cannot accept the mysteries and the miracles do not go out with the Salvation Army at night.

The only possible conclusion is that faith comes with a packet of moral imperatives that, while they do not condition the attitude of all believers, influence enough of them to make them morally superior to atheists like me. The truth may make us free. But it has not made us as admirable as the average captain in the Salvation Army.