I'll bet your shot is better than what he's going to get with his cell phone! Last time I was at the Grand Canyon, I was amazed how many people were "shooting" with cell phones. Of course, a lot of them were taking selfies in front of the GC (rather than really looking at the canyon!)
Amazing vista. There will always be risk takers, with or without cameras or cellphones. One has only to look at some of the photos from the 19th century of rock climbers in places like Yosemite to know that nothing has changed in that regard.