If you read the series I mention in the last post, you'll find evidence that inequality has not always been the order of the day. In the middle of the 20th Century everyone's incomes were growing faster and the ones at the bottom were growing faster than those at the top. Since then, not so much. I missed this chart from Jacob Hacker and Paul Pierson in their Winner-Take-All Politics that explains how things would look if the trend hadn't changed.
Via Kevin Drum.