Boomers had a work ethic that the preceding generations haven't been able to really match. Think it was a visceral response to the Great Depression.
That's a crock of shyt actually.
Boomers had access to wealth from the shyt like their parents GI Bill and the expansion of Credit. This is all pre-1970s inflation. Which meant that credit or house that your family owned was worth significantly more. Every study on work habits shows that people work WAY more nowadays because of the technology. When Boomers entered the workforce, you went to the plant or office, punched in and when you punched out that was that.
For most Gen X and Millennials work bleeds over into evenings and nights via email, Slack, Messenger and the sort.
The economic boom of 90's had nothing to do with work ethic and everything to do with the rules being changed so certain people could keep blowing money.