Religion plays a larger role in poverished areas. True. Europe has one of the least people considered "religious". Why? Most of the government has taken up the socialist causes to take care of people whereas it used to be the church.
Can't answer why dissent is going on now in MidEast. Poverty has always been a staple in Africa, and yet you did not hear much "terrorist" acts in previous years. There has always, always been fighting in Africa. One band against another. Even before British, French, and Belgium influence.
Maybe it is the images they see.
When I was in Pakistan several years ago. I was confronted by the Baltis in their typical banter. They loved to sit around and talk. They kept asking me, "Why is that we are so poor and yet we work so hard?"