I think you know the potential situations before you ever embark on this type of journey. If I paid the money and did the waiting list and spent the time to prepare and I am one hour from my lifelong goal I am pushing to the top and I would expect everyone to do that to me if the situation aroze where I was stuck. I knew what the risks were going in and in no way would I expect you to give up your deams if I for some reason was not prepared or fell ill. If I was paying an outfitter/guide it would fall to him to decide to help me or not.
