Exactly. I, personally, see it as a "three-fold problem". One issue is that there are really not that many people truly raising cane at any one time. Most are just watching the more active people misbehave. The second issue, though, is that the folks who ARE misbehaving may well-know they are being recorded by the Media and play to the cameras. There is also a chance that others might just pitch-in to get their faces on TV.
Lastly, I blame the Media producers who constantly fish for Market Share. Tight camera frames, poor focus and poor stability can all impact a video making it seem like a lot more is going on than really is. There are even University courses in "docu-dramas" and "mock-umentaries" that teach how to give a real "You Are There" feel to videos or the sense that you have been swallowed-up by some chaotic event. The Truth is the Truth, but for Media Producers the Truth is often "boring". Better to have an exciting misrepresentation, right?
Best Wishes,
Bruce