The Chinese have a saying: 富不過三代 / "wealth does not survive three generations"
Things are much more stable in Europe, not to mention the US. The Nazis were, generally speaking, quite friendly towards accumulated wealth (unless you were a Jew, of course), and in case of Britain the last major "all of your accumulated stuff is ours"-thingie happened after the Norman invasion, almost 1,000 years ago.
https://en.m.wikipedia.org/wiki/Destruction_of_country_house...