So... Stock value has doubled in the last eight years. (But the value of my labor has not.) Rich folks who had 10 million in stocks now have 20 million. I'm so happy for them!
ETA: I know, I know: lots of people have money in the stock market, not just rich people. (I even do myself, in the sense that my pension plan invests in it. Exciting!) But the vast majority of stocks are owned by the ultra wealthy, even if a lot of people have a teeny tiny bit each.