And how many of them would die doing body recoveries?
I think most high altitude climbers who have put in years gaining the necessary climbing experience and organized their own expeditions (as opposed to writing a cheque and hitting the gym for a year) accept they will lie where they fall if something goes wrong.
Nova did a great documentary, Everest: The Death Zone, about how dangerous high altitude climbing is. They put a group of climbers (including Ed Viesturs and David Breashears, two of the best) through cognitive tests at sea level and again at altitude, and it is scary to see how slow their brains work up there.
well its what a sherpa does for $ and besides they are Buddhists so if they die its just destined to be , I read about a western climber trying to teach them rope work said they aren't too worried about getting it wrong