Seeing a picture of what looks like horrible working conditions or some other ambiguous picture followed by a short paragraph written by someone you don't know isn't enough to get worked up over.
Like it or not, people will post anything that gets clicks. I've been tempted on multiple occasions to just grab a picture off of Google and make up some inflammatory story that people get worked up about and then reveal later how easy it is to get people riled up with made up crap. I haven't because I'm worried that most of the people who saw the original post wouldn't ever get the memo that it was fake.
Just remember that a picture and a story from a single redditor may not even be real, so take those kinds of posts with a grain of salt.