http://www.secularhumanism.org/index.php?section=library&page=pzuckerman_26_5
"If this often-touted religious theory were correct-that a turning away from God is at the root of all societal ills-then we would expect to find the least religious nations on earth to be bastions of crime, poverty, and disease and the most religious nations to be models of societal health. A comparison of highly irreligious countries with highly religious countries, however, reveals a very different state of affairs. In reality, the most secular countries-those with the highest proportion of atheists and agnostics-are among the most stable, peaceful, free, wealthy, and healthy societies. And the most religious nations-wherein worship of God is in abundance-are among the most unstable, violent, oppressive, poor, and destitute."
"One must always be careful, of course, to distinguish between totalitarian nations where atheism is forced upon an unwilling population (such as in North Korea, China, Vietnam, and the former Soviet states) and open, democratic nations where atheism is freely chosen by a well-educated population (as in Sweden, the Netherlands, or Japan). The former nations' nonreligion, which can be described as "coercive atheism," is plagued by all that comes with totalitarianism: corruption, economic stagnation, censorship, depression, and the like. However, nearly every nation with high levels of "organic atheism" is a veritable model of societal health."
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"In sum, countries with high rates of organic atheism are among the most societally healthy on earth, while societies with nonexistent rates of organic atheism are among the most destitute. The former nations have among the lowest homicide rates, infant mortality rates, poverty rates, and illiteracy rates and among the highest levels of wealth, life expectancy, educational attainment, and gender equality in the world. The sole indicator of societal health in which religious countries scored higher than irreligious countries is suicide."
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"The information presented in this discussion in no way proves that high levels of organic atheism cause societal health or that low levels of organic atheism cause societal ills such as poverty or illiteracy. The wealth, poverty, well-being, and suffering in various nations are caused by numerous political, historical, economic, and sociological factors that are far more determinant than people's personal belief systems. Rather, the conclusion to be drawn from the data provided above is simply that high levels of irreligion do not automatically result in a breakdown of civilization, a rise in immoral behavior, or in "sick societies." Quite the opposite seems to be the case. Furthermore, religion is clearly not the simple and single path to righteous societies that religious fundamentalists seem to think it is."