The floating city of Stratus, populated by social elites on the fictional planet of Ardana in the Star Trek episode "The Cloud Minders". Today's elites are most concerned about political and social unrest impacting their wealth.
After reading the article, I think it is easy to see how the magic of capitalism makes it so convenient for the One Percent to keep grabbing more wealth without doing anything of social value: they don't cook meals, tend crying children, empty bedpans, work on an assembly line, or even function as bosses. All they need do is hire brokers to advise and invest their wealth. I really didn't get the feeling that they are very worried about the 99 Percent interfering very significantly with their wonderful lifestyle--did you? What is more interesting is how the author sees the growth of a trans-national capitalist elite.
If you are wondering: what on Earth do these people do with their time? Jamie Johnson's fine films, Born Rich and The One Percent will give you some idea.