Are you actually suggesting that a person who confronts the selfish, flash-using, rule-breaking moron and calls them out for breaking the policy that Disney has instituted for the safety and well-being of all park guests is in the wrong?
I hope I misunderstood your post because, if that's what you meant, we need to talk!
While riding TGMR last August, we sat behind a family with a flash camera. The mom started taking pictures almost immediately. I simply said, "No flash photography, please". She paid no attention and kept going. I stated again, louder this time, and she kept going. Now, her daughter was turning around and giving us dirty looks. I said it again and realized that this woman was pretended not to understand me because she was speaking in another language. She must've known what I was saying, however, because she handed the camera to her husband. Was she thinking that I wouldn't say anything to a man? I then stated loudly and clearly and in Spanish that no flash photography was allowed. That did the trick. At the end of the ride, the family exited quickly. We spoke to a manager about why the rule can't be enforced and went out of the building.
Waiting for us outside was a group of people who wanted to thank and support us for saying something. That was very nice of them, but I wondered why the entire group left it to me to be the only one to stand up to these people. There are more rule-followers in WDW than rule-breakers and we need to stand up for our rights as admission paying guests.