Would the biggest shock be those who were dirt poor but became filthy rich, or those who were insanely wealthy and ended up below the poverty line?
Imagine you had someone who was dirt poor, had to shop thrift, using food banks or EBT card, and making use of soup kitchens, receive a windfall. They go from the outhouse to the penthouse, from nothing to 100s of millions of dollar. You have a second person, beach houses, several mansions in different time zones, vacation property in Tuscany, penthouse in Manhattan, vehicles that cost as much as many middle-class homes, etc, and they lose it all. The gold cards are all gone, the bank account, the country club, gone also. To eat they have to use food banks and soup kitchens. They have to buy off the rack, etc. Who would have the greater culture shock, going from nothing to more than you can imagine, or from the top of the world to barely scraping by?