I suppose I'm wondering if the definition of "hard work" has shifted. In the '50s and '60s was "hard work" like 60 hour weeks and "hustle economy" type of stuff? or was it just "doing a good job" 40 hours a week?
I think to some extent it's always depended on who you talked to, but "hustle culture" as we know it today definitely wasn't part of the ideal of the American Dream at any point before the '90s, at the very earliest.