(In response to this post:)
Storytellers, philosophers, singers, priests and poets throughout time have been conscious of the power held within words. More recently, the power of words has been twisted into a science of psychological manipulation, utilized by businesses and mass movements of all kinds—all serving agendas that impose untruths onto the unthinking receiver.
50 Shades of Grey, or any other work of fiction, cannot be held responsible for the behaviour of those who read them; a storyteller isn’t keeper of his or her readers. Many books in history have inspired horrific acts of violence and murder, but the warped minds of a few, leading the soft wills of droves of sheeple, are not the result of ideas put into words, but of how those words are interpreted by those who hear or read them.
Uncritical consumption of books, speeches, films, or of ideas in-general, is the norm for most (religious and political talking-heads count on it), and those who manipulate weak minds with words—fictional, religious or political—are going to find their words, or write them, in order to serve whatever agenda they are interested in promoting.
Censorship should never be a suggested answer to that. An Orwellian culture of controlled language, literature, history, etcetera, is not a free one. If you’re offended by the imagined content of a book you’ve never read, choose not to read it, but don’t suggest that nobody should read it. Only you are responsible for how you react to ideas, and it’s not your job to tell others that they must fall into line with your opinion.