The people of Islam determine their own idea of what Islam should or should not be when ‘as individuals’ they choose to justify their cruel actions by using what is written in the Koran and other writings. Along with this the varied instructions and interpretations of the Imams over them, who also determine what is permitted or not.
With illiteracy so high among the eastern populations and many feeble minded the masses can be easily manipulated and are by it's leadership within the Mosques as well as the Governing leaders.