What an interesting question. What wholly atheist and/or irreligious countries are there for us to examine? None that I can think of. The closest two that spring to mind are Japan and China. :nod
Japan - low crime rate, good work ethic, excellent education, great consideration and respect for others, very well organised, high GNP, low poverty, a sense of honor. (Problems of the second world war were overcome very quickly (15 years) with the benefit of much over-seas aid.)
China - low crime rate, good work ethic, excellent education, great consideration and respect for others, very well organised, high GNP, low poverty, a sense of honor. (Problems caused by multiple invasions, the second world war and the revolution were overcome more slowly -50 years - without any outside assistance, just criticism.)
These two examples seem to show that you do not need religion' to create a good society. If we look at crime statistics around the world, the highest crime rates appear to be in the most religious countries with the exception of Islamic countries which are
all below average on crime and all above average on caring for neighbors.
Ah, I nearly forgot Vietnam. Highly irreligious! I haven't been there but I'm told it is now a lovely, prosperous, friendly community despite the devastating problems they suffered only a few years ago. Apparently there is a low domestic crime rate but quite a high rate of pick-pockets targeting American tourists. I can't imagine why.