Everyone that attempts to make that climb knows the risks, and knows that past a point, you can't and won't be saved if something goes wrong.
There are other considerations when doing something of that magnitude as well. If you attempt to save someone who is most likely already a goner, what might happen to the rest of the people that you're climbing with?
In technical diving, you learn that even though you dive with a buddy, you're always diving solo. I'm sure a climb like this is no different. If I'm on a dive and have a chance of helping someone, I will. However, if I know that helping will take two lives, I have to get myself to safety. This is why I won't dive with family or close friends. If you want the perfect example of this, read "Shadow Divers". A father and son team of divers trying to identify the U-869 died when one tried to save the other.
I'm not saying it's easy. I'm not saying it's right or wrong. I'm saying that by putting yourself in a situation like that, you have to understand the risks and know that you may die. You also have to understand that you may be put in a situation where you have to watch someone else die.