Rachel Becker's PWR 2 final animal advocacy photos:
Essentially, she seems to find that graphic content promotes more empathy and triggers the viewer's desire to contribute towards change. Thus, we shouldn't shy away from using disturbing images when promoting animal rights or veganism.
But, in my opinion, we should always offer a recourse. We shouldn't simply show the factory farm videos and let the viewers draw their own conclusion because the path to apathy is short. We ought to give concrete solutions, like: Go vegan for the animals, for your health, and for the planet.