In the case of the Chinese that might also have been caused in the past by communists taking over the country and nationalizing everything or by people from up-North invading and making themselves rulers.
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.