Why the #%*@ is swearing considered worse than sex and violence?

The New Adventures was heralded into Doctor Who by the closing paragraphs in Rona Munro’s Survival. Peter Darvill-Evans, then publisher of the Television series novelisations, developed an idea of what seemed to be a new direction for Doctor Who.

Are the New Adventures to Doctor Who, as Star Trek: The Next Generation is to `original’ Star Trek.