The wealthy need a middle class buffer, although many of them do not realize this.
There is a wealthy neighborhood here in our giant ghetto known as Memphis. It’s maybe two or three square miles.
On one side is a not too awful ghetto. On the other side is a really awful ghetto.
The wealthy people cannot leave their gated communities after the sun goes down because all the middle class areas that served as a buffer collapsed.
Simple, the public schools got bad, private schools jacked their tuitions through the roof and the middle class fled the city leaving the wealthy to fend for themselves.