One of the residents of the Met building in the book is a successful hedge fund manager (not an owner like his uptown mentor, but a prosperous white-collar professional with the equivalent of a high-end sports car). Another is a streaming video celebrity with her own airship. A third is the head of a not-for-profit agency, another executive. These are all upper middle class New Yorkers, scraping food trays in a communal cafeteria if they’re late for dinner.
The point is that neoliberalism has continued to run rampant to the degree that wealth has concentrated in an even tinier group of hands than it has now, and that everyone else is either nibbling at their table crumbs or worse.