my school teacher mother bought a beachfront lot in Puna (read: impoverished) in the late 1970's. Over time the place became a "gated community." Over more time, billionaires began buying it up. By the time my mom died, the neighborhood was overcrowded and being broken into, constantly. I inherited a money pit sloshing into rising seas.
The billionaire next door began construction on a "retreat complex" He had laborers add four more structures with noise and destruction of ecosystems for seven years straight.
We could never afford insurance, or upkeep, but we managed to finally sell.
Months later, Madame Pele took out the ENTIRE Kapoho neighborhood.
He, I assume, lost it all, but "retreated" back to San Diego, his write offs, in hand and moved into his Plaza tower, there.