More was simply expected of us. Not "hoped for" or "aspired to", but expected. And parents weren't at loggerheads with teachers; what teachers said was law. So if a teacher said you were learning the multiplication table this week, parents didn't argue it was too much, or encourage you to "do your best." You'd be drilled on those times tables until you wanted to kill someone, but you'd damn well be expected to have them memorized by the end of the week.
The idea that people were driven by good money is a western misinterpretation, or whatever the cultural equivalent of anachronism is. My grandmother used to scold my aunt for marrying an engineer instead of a tin knocker, like my mother did, because tin knockers brought home the real money.
I think those two elements - expectations and parental cooperation - don't get enough credit, by far.