I wouldn't expect it from politicians, but am surprised how even experienced writers on this topic can't seem to understand the real factors at work here and contribute to an objective conversation about income, wealth, and class in America circa 2015...
If my wife and I work 80 hours/week for an energy company that is highly cyclical, we are very different than two physicians who work 80 hours a week but have lots of job security, who are in turn very different from a retired police captain who collects $250k from two spiked Government pensions, who himself is very different from a retiree who lives on $250k in dividend income from a $10 million dollar portfolio of index funds. Not to mention who owns their own home (inherited perhaps), and who doesn't. It's almost like ''income is the worst way we have to measure relative prosperity, except for all the others''.