Agree with all your points: EXCEPT:
The things we did by then were very expensive. A good wool sweater would be hundreds of dollars, no throwaway anything.
The "rich" in our towns went to the same social events, etc, as the poor. They drove their cadillac there, which was much of the only difference between the two.
The rich now often don't EVER see a middle class person. MOST middle class people don't have any comprehension of the wealth of the rich now. A $10,000 per night hotel, a $25,000 lunch, all are regular things for these folks. One of the reasons it is hard for people to understand the IMMENSE wealth of these folks is you will never see them. You don't see what they are buying, their consumption, their habits. They don't fly on our planes, not even first class, as that is soooo bourgeoisie. They fly cheaper private jets everywhere. They go to places you never even knew existed.
Most middle class folks think those making a few hundred thousand are rich because that is all they see. The REAL rich folks are hidden from view on purpose.