I think it goes along with the "rules don't apply to me" mentality that's so prevalent today.
People equate those safety railings and warnings not to cross with "no cell phone" signs, hospital visiting hours, and moving all the way to the end of a row in Disney attractions.
We saw some terrifying feats of stupidity when we took our kids to Yellowstone. We had MANY discussions about the thermal features and how you HAD to stay on the path or you could be killed. We saw one idiot CLIMBING on the terraces at Mammoth and I literallly covered my kids' eyes fearing we were about to see someone burned to death.
On the same day, we were fortunate enough to see a grizzly bear. We joined a fair-sized group of people watching it from the side of the road. Then this couple came up, got out, opened their cooler, and SAT DOWN TO EAT. RIGHT THERE WITH THE BEAR!!! OMG!!! We hastily decided we had seen enough of the bear and moved on.
Both of these stupid acts COULD have resulted in fatalities but didn't.
We have also been to Yosemite, and hiked to those falls where the people died. Seriously, I barely dared to get up to the railing for a photo, it was obvious that crossing over it would be fool-hardly, and to get INTO the water? Right above a 300' drop?? Boggles the mind. It does make me sad to think of what their last moments were like

but DANG? Why would they do something so stupid?!
