There is a huge difference between seeing and just simply hearing something. Hearing something, specifically hearing someone talk, may result in the listener getting distracted. Watching a video or seeing a photograph adds a powerful touch to the message that is trying to be portrayed. Photography adds power and a sense of empathy. Just by listening to something, you may not be able to fully understand and grasp the intensity that is being portrayed. Photography has the ability to tell a story on its own. While listening to a story may not have the same effect.