In arelatively short period of time, society can chage drastically. The sit-down strikers in Flint made themselves at home until GM recognized the UAW.
The founding of the CIO and the defeat of Jim Crow segregation were the signal events of the Twentieth Century.
Once Henry Ford mastered the secret of assembly line production (ease of management, as opposed to actual work efficiency), his plants became patriarchal hell-holes.
Summary dismissal and snooping into workers' private lives were the price of a high industrial wage.