The importance of the treatment of workers

Using Hicks and two other books from the course, write about three examples of: What is the importance of the treatment of workers of all sorts in in the success or failure of completing a large practical project or bringing the technology into widespread use. (Your examples don't need to be brand new inventions.) Draw conclusions about why the bringing into use of new technologies often leads to unfair treatment of the people involved (for example workers).
Make sure to take an example from a particular time period, not something as broad as the assembly line in general over 100 years (the assembly line before 1930 would be narrow enough).
Books used in the course: Vaclav Smil , Energy and Civilization, A History (MIT Press, 2017) Joshua B. Freeman, Behemoth: A History of the Factory (WW Norton, 2018) Loren R. Graham, The Ghost of the Executed Engineer (Harvard, 1993) Marie Hicks, Programmed Inequality (MIT Press, 2018)