I find these charts interesting but don't buy the tie to ending Breton Woods. Society was just as capable of extreme inequality under a gold standard. See the Gilded Age.
Globalization and the IT revolution also happened in the same time frame, and have contributed to inequality via much more obvious mechanisms.
Anything other than one person's video? Videos take a long time to watch, and longer still to ferret out and check out cited evidence for the claims (if there is any).
See:
https://wtfhappenedin1971.com/