Unfortunately, being principled and doing the right thing don't get you promoted these days, so unlikely to see any decent management any time soon.
Combine it with the rise of the professional manager (who come straight from university, bypassing real world experience and life lessons), into mid tier management, and you won't see a change from 2-4 year bonuses all round management terms and me first management styles for another generation.
I wonder if the management degrees have ass kissing modules in the curriculum?