That’s the same time the MBA’s (Master of Business Administration) starting infiltrating banking. Up until then, a lot of bankers got their educations in-house. Everything switched to the bottom line ONLY and being a good citizen of the local community fell away.
It is the college education that, from that time on, has taken the goodness out of a lot of professions. No more working your way up from the mailroom, etc. No more human kindness or respect for tradition and the wisdom of experience.
Careerism and globalism both have antipathies towards tradition, and both are among the most influential mindsets on college campuses. Perhaps campus leftism is a side-effect of these, and not an independent phenomenon.