“They” are affected by the same supply chain issues that we are. Even if “they” have private jets, etc, trucks and boats still have to deliver the gas and jet fuel to them. “They” still need trucks, boats and planes to deliver their food. I would argue that “they” are so spoiled and used to be waited on hand and foot that they would be more affected by supply chain shortages than the average person. This scene from a movie sums it up:

https://youtu.be/whvDmNkJhUk