I have less levels. To me access to health care and education define the middle class today. Without them, you are one mis-step from penury.
To me someone is truly wealthy if they are secure in their lifestyle, without having to work. That means if you are happy living in a one bedroom in Northpark, you can probably be wealthy for a couple of hundred grand. If you’d like to live in Del Mar, well its at least an order of magnitude higher.
The key to true wealth in my eyes is lowered expectations, once you’ve got the basics covered. True wealth is the power of knowing you are far less controlled in your destiny than most of the poor shlubs driving fancy cars.