Well, I do agree with you that materialism gives a sense of self satisfaction and hence the urge to denounce the hand of God. You are also right in your statement regarding the West. After all, it is the human nature to forget his God when his spirits are high !!! When you are uber rich, you seldom put your feet on the ground. You are yourself treated as a God. It all gets to your head and finally, you believe that you are a god?
But, there are quite a few ultra rich who give God His credit.
Basically, human when in trouble prays to God but seldom thanks God or follow God's way.
I know many will never acknowledge this as true, but, the west became prosperous because of the righteous livelihood imbibed by Christianity. (I would rather say, by believing in Christ). This applies to all Europe and the Americas including USA. At the height of material satisfaction, all these countries are straying from the path shown by their fore fathers. Hence, the various calamities that are befalling them, be it natural or induced or financial.
It is to one's own peril that he/she denounces the Divine.
Actually calamities were more on them when they believed in Religion more. If we compare then believing in religion led Europe to Crusade, Protestant vs Catholic war, destruction of Native American civilization and subsequent liberty war, French revolutionary war, Napoleonic wars, and finally WW1 and WW2, for US civil war, Paraguayan war and many more, but now very few. Calamity depends on our hand or in natures hand. God does nothing. God did not or could not stop Black Death.
Being rich or poor depends on time. It is not due to Christianity for which West is developed. Once India, China and Native American civilization were developed, now they are, but we are becoming now. Religion apart from giving mental satisfaction does basically nothing.
Another fact is we Hindus in India, Buddhist, Confucian and Native Americans were rich with out plundering other's wealth, mean while Christians are rich after pludering Asia, Africa and America's wealth. So you can see when Dharmic religion's followers, Native Americans and other religion's followers became prosperous by producing more wealth mean while followers of Abrahamic religion became rich only after pludering other people's wealth.
Also, when you believe that religion can give peace, I would like to ask, is Atheism a religion (or the lack thereof)??
Atheism does not believe in God, so hence no God so no religion. Religion is in believing God, Atheism is in denying very basic concept of Religion, that is God's existence.
Now you may ask hence Athiests are not Christian then how secular world can have Christian foundation? It is because suppose a person, Michael Bell from Canada(with British ancestry) is atheist, now going to marry, his marriage ceremony still will be Christian because he came from Christian back ground, you see the point?
Religion has many systems(suppose for every religion different marriage ceremony) but Atheism has no system or concept apart from not believing in God. That's why you may be atheist but when you are going to marry you will still follow Christian marriage system because Atheism does not have their own marriage ceremony.
If any American atheist dies, he will be buried according to Christianity, not will be burnt according to Hinduism.
So hence majority of atheists are from West, and are from Christian back ground so Secular world has Christian foundation.