GregLocock, I cannot remember the details of the articles. I read many of them several years ago. If memory serves, it is take home pay for most Americans and we have less disposable income and real purchasing power than our parents. When I get time, I'll try to find the article(s).
I don't judge anyone's standard of living but my own. It's the only one I have a little control over by deciding what, how, when, and if to spend money. If someone can afford their own personal jet to fly around the globe, more power to them. If they can afford a Hummer, Caddy, etc., more power to them. It isn't for me to think anything about or try to regulate their behavior. I like capitalism and free markets. We've got thousands of laws in the Federal Register and I dare say we need far fewer and many are probably asinine.
We grew up in poverty but I have cousins who did not, by a large margin. Money is not the source of happiness but it can make life easier, if handled properly. Some of my cousins could handle their inheritance and some couldn't. It's been an interesting lesson to observe through my own family.