The movie "The Book of Eli" explains it all!

For those who haven't seen "The Book of Eli", it's about a post-apocalyptic world and a man who carries the last bible on earth. In the movie, the bible is worth more than any other item imaginable. It's supposed to "restore faith" in believers, but it points out a brilliant fact unknowingly to the viewer. In the movie it says that the bible is worth more than any item on earth because it has the power to manipulate mass groups of people into believing and carry out whatever mission (usually with the intention of having them be your slaves) you ask them to do without them asking questions. Does that not explain every organized religion there is? Why else do we have holy wars?

Think about it.