Unless you have inherited wealth and live off investment income, you are worker whether you are a school cook, a nurse, a doctor or the owner of a large business.
Back in the late 70s/early 80s when post war babies were young adults the Labour Party was still talking as though the majority of workers were down trodden. They hadn't recognised that we wanted more out of life and, as Fennel says, we had become aspirational.
I do think that Thatcher, with the sale of council housing, is indirectly responsible for the present state of the country (well, pre-covid) if for no other reason than preventing the councils to build more houses with the proceeds from the sale of their housing stocks.
When I was about 6 my parents moved from London to Dorset and got a council house - probably post war, but I'm not sure of that. I don't know how they managed it but I assume that it wasn't difficult. During my school years some of my contemporaries were from poorer backgrounds and some from better off but it's not something I was aware off.
I also think that Thatcher was partly responsible for the change in peoples' attitudes. I remember in the early eighties, one of my friends who was a deputy in a south London primary school, talking about some of the parents who would threaten teachers and sometimes physically harm them, because their child had been told off.
The UK is a strange place I think. The divisions in society seem to be worse than those in other European countries. Tens of thousands of people have donated to various charitable sources this year and there are countless stories of people helping others. But there are also examples of huge greed and destructive behaviour. I don't know what the answer is.