the fact is, from a game theory standpoint the ideal Christian solution is the win /win while the ideal Islamic solution is I win one you lose one. In the end, the first is a better model for society than the second.
You know the rigid islamic principles apply mostly for the poor and middle class muslims.
In India or even in Arab world, rich muslims lead life bereft of any sense of morality or religion. They drink, womanize and gamble, in the discreet veils of their higher economic status.