World leaders are divided by the territories as well as religious faiths also and in some place by language,race,practices and ego also, so when religious faith unites, no one can do them apart. Nor language, not area or otherwise. People can practice their religious views by a society and any man apart from that society will find it difficult to live there. Some nation created by the societies as well as tribes or social norms and sure majority leads the social process as well as national media so minority feels unsafe or some time abused.
Happiness, companionship and devotion of feelings of oneness are created when you feel that you are one of them so when in developed country develops multicultural nations they enforce law but it is rather difficult to implement, and people have tendency to overlook them and some time break them with out not sure about effects on his/her life. If they can't help them self they feel lonely as well as disgusted.
Religion fills society and its people's minds with holy quotations and dreams such as residence of heaven where no works, no society , no obligation only sex and food no rationality needed, no job, only happiness and superb living standard with superb healthy body and mind to live and cherish, they don't raise a question whether there we are human or not, if once you get there you can not perform any development works what human's status will be?The sense of works demolished in the believers and just praying(begging) for some thing is the worst case developed on the believers mind and doing nothing is the result.So why the third world countries left behind. People know that only praying for eternal life and religious practices will let them in to heaven so that they don't try science, live simple life and die like an animal who have nothing to worry why he/she lived this world ?