This was an interesting video about how word choices are basically by their very nature manipulative:
I love the references to Barack Obama's political campaign phrases and Occupy Wall Street. I'm not saying it's bad to use words in a way that is clearly manipulative. When I was writing the book, some of the people involved in the publication were concerned that the book was going to be manipulative. I told them that the book was going to be manipulative no matter what as long as it involved word choice -- the question was only about degree of manipulation and which way it slanted. I have spoken before about loaded word choices from journalists, even so-called objective journalism is naturally manipulative in that it is trying to get you to actually read or watch the feature. And of course one of the most loaded and pejorative terms you can call someone is a sociopath. I guess that's because you are inhuman unless you empathize? (Except people with autism, asperger's, some limited types of brain damage, some mental handicaps, or other things that Simon Baron-Cohen does not deem to be one of the "evil" types of lack of empathy).