See Atherton, the Hamptons, etc.
Why live far away from cities (presumably where the companies they run and own are located), the best food/ entertainment are, and so on?
If they are incredibly wealthy, why not buy up a nice big chunk of property in a city where they can just pop outside and explore things at their leisure? Why add the extra step of needing to commute in a car for long distances?
Also, I know that some wealthy people might prefer the peace of a suburb, but why they seem to cluster specific places, rather than distributing out wherever they want to live? If your going to live in a quiet peaceful suburb of San Francisco or LA, why don’t an equal amount do the same in Wyoming or Kansas?