It has much to do with the religion. Muslim men are supposed to have 4 wives and they are all to be breeders, but no man who must work for a living can support 4 wives and 40 children, the women aren't supposed to work so they can't contribute financially so obviously most except the oil men will be impoverished. Islam supports the buying of wives, an older man can buy a 12 year old and keep her having babies, then he dies and leaves a jobless young widos. Also women are not supposed to be educated. Obviously a man with 40 kids isn't going to be spending any time with any of them, the women can't read books or teach their children so the culture promotes ignorance. Then there's the problem of the 3 out 4 men who don't have wives, they have no purpose but to die for the religion.