More and more this appears to be an unsupported assertion, and in fact, the opposite appears to be true. According to Ruth Gledhill, Religion Correspondent of the Times Online, "Societies are worse off 'when they have God on their side.'" From the article:
"RELIGIOUS belief can cause damage to a society, contributing towards high murder rates, abortion, sexual promiscuity and suicide, according to research published today.
According to the study, belief in and worship of God are not only unnecessary for a healthy society but may actually contribute to social problems.
The study counters the view of believers that religion is necessary to provide the moral and ethical foundations of a healthy society..."