I watch russian (and other) car crash videos, not for the gory content, but because I find them very educational. I feel they help me become a better, more responsible driver.
Couldn't find anything in the literature - they probably don't, or perhaps it's such an obvious requirement that it's not even mentioned. Given that driving culture and etiquette are very different in every country, I'd guess a system trained for US roads, traffic rules and social behaviors does not generalize as well for Russian or Chinese or any other country's roads.
On Youtube, there are a few channels that kind of focus on the gory side, which is why they have a lot more static images taken from the outside after the mishap.
But the ones I watch are regular dashcam video footage where some kind of mishap is captured while it's happening - sometimes just a fender bender, sometimes road rage, sometimes serious accidents, sometimes a third vehicle which just happened to be at the wrong place at the wrong time . I'm of course biased towards such channels, but the number of such channels are far higher in my opinion, atleast on youtube (sites like vimeo or liveleak possibly have a different ratio).
It wasn't really gore that was most "shocking" to me. It was realizing just how easily and suddenly an accident could happen. In fact the most shocking one I remember was an in-car footage of a cab passenger thrown violently like a ragdoll when its rear was hit hard by another vehicle. It happened in the blink of an eye and it was severe. Now I insist all my backseat passengers wear their seat belts, despite a lot of eye-rolling and groaning :)
Some of them also have amazing saves by the people involved. I'm not sure one can actually learn how to do that in an extreme situation from a video though.