Dead bodies on Mount Everest
imgur.com
imgur.com
That's not to say that the behavior is entirely acceptable. The story of the man whose body froze but was still alive and people just trudged past him assuming he was dead until someone finally heard him moaning softly is particularly horrific.
I understand that horrible situations can call for relaxed moral constraints just to survive. Living/fleeing an area seeing active military conflict, severe drought/famine, and any number of other extremely taxing situations can call for harsh decisions in order to survive.
I think this is different.
What we have here is (I admit, I assume) a bunch of privileged people purposefully submitting themselves to extreme hardship for a sense of accomplishment and meaning. In a way, emulating what they were lucky enough to have avoided by nature of where and who they were born as.
I didn't really have strong opinions about mountain climbing at this level before this montage (beyond thinking it's a bit ridiculous), but now I'm somewhat disgusted by it.