but a real photo journalist is simply there and does not influence events as they happen
First off, randomly running around with your GoPro looking to catch people in the act of whatever, hardly makes you a photojournalist.
Secondly, nothing pi$$e$ me off more than videos showing someone in need of help and the putz behind the camera won't put it down for a second to help because he might miss the shot. Somewhere on the internet there is a video of a cyclist pinned under a car still alive. Some arse started recording and even moved in closer and to a better angle for the shot, no call to 911, no attempt to assist, he even stood by taking video while a dozen or so bystanders, including the driver of the car, lifted the car off the fallen rider and gently pulled him out, probably saving his life because you can hear someone who is kneeling and reaching under the car yelling "he can't breathe". Our "videographer" didn't do jack, but he got a great post on YouTube.