Everest is so dangerous for anyone, regardless of ability or group size. I was part of a climbing team on an expedition to Cho Oyu which is a 8,000m peak just west of Everest. A South Korea team was just ahead of us and they had Sherpas out fixing ropes higher on the mountain. A huge wind came up and blew several Sherpas off the mountain. I never heard that any of them were found.
Would the South Koreans even try looking for the Sherpas?
I know a guy that climbs a lot. A Sherpa died on one of their climbs. The group got together and built a new home for the family. And after being in the village for awhile saw other needs (school?, etc.). The guy said that even in Nepal the Sherpas are pretty low on the totem pole. They still send funds monthly to the family to help out with things. Of course the $100 or whatever they send over is nothing to him, and everything to the Sherpa’s family.