I dunno, dude. Either you make an attempt to save the guy, if he can be saved, or else you STAY with him! You don't just give him some oxygen and continue on with your merry little trek, leaving him to die.
He couldn't be saved. Staying with the body would have jeopardized more people.
You do realize they ran across this guy at the height of a pressurized airliner, right?
Other factors go into the decision.
"Do we have the correct equipment to carry him down?"
"Do we have to remove OUR OWN life-saving equipment to attempt his rescue?"
"Is it even possible to get him down the mountain?"
"Can we do it without risking one of our own lives?"
"How close to death is he?"
Until you know the answers to these questions, you can't judge them.
Your solution is to STAY WITH HIM AND DIE? Should only one person have given his life or should the whole party kill themselves?
Your "solution" would solve nothing.
You have no idea what the conditions are in a place like that. If you stay with him, you die as well. It is all climbers can do to put one foot in front of the other at that altitude. A lot of people have died on that mountain and several others in the world. It's the nature of the sport. No other climber is going to feel guilty about his death.
That's right. Even if there is no hope of saving him, you STAY and die with him..... it's the thought that counts!