In the popular science fiction programme Doctor Who they presented an episode in 2007 called The Shakespeare Code. The story revolves around extraterrestrial beings called the Carrionites who (in the form of witches) come to Earth during the time of Shakespeare. They derive their power from the potency of words but are defeated by Shakespeare's prose.
In a similar vein, the animal rights industry is very much aware of the power of not just pictures but words particularly when they are emotively loaded. In fact, the animal rights industry and its supporters are very careful to never involve themselves in anything that would tax the critical thinking of the observer. They do not want people to analyse what they are presenting they want to just elicit an emotional response to circumnavigate any logical or rational thinking. As a colleague once observed they just want to go for a dopamine hit. To the animal rights industry, words are power.