I sometimes find it a shame...

[Sheldon]

Helping the poor as your Jesus preached, for starters.

The two are not mutually exclusive, and the church/Christian remains the world's largest charity segment.

No indeed they are not, but imagine how more might have been done to help alleviate poverty, using the vast wealth and resources spent on such buildings, not to mention the unimaginable wealth institutions like the RCC have sequestered away. Religions have held enormous power wealth and influence in the past of course, since most people were religious, so we don't have a level playing field to compare secularist, humanist and atheist altruism.