@calvinj Perhaps it's because a lot of people hate the rich. Because once people get that rich, something is out of whack. This happened in the French Revolution.
I'm not saying that's correct the correct attitude to have. I'm not saying there's anything wrong with 81 billionaires having more wealth than 50% of the world combined, or the fact that they are taxed the least (only 4 cents in every dollar of global tax revenue coming from wealth taxes).
No, I'm not saying anything is wrong with this picture at all. But some people are annoyed about this, so when they see examples of "conspicuous consumption," it triggers them.