You're missing the trees for the forest. The Industrial Revolution was terrible for the people who were working during it. Their jobs got eliminated and they only sorta sometimes were able to retrain for the new jobs, and the working conditions in those new jobs were atrocious, exactly because they were new enough that we didn't yet have safety regulations for them.
It was only their children who eventually saw any improvement in working/living conditions, and it was only because of all the absolutely awful things that happened to their parents. Safety regulations are written in blood. It only looks like consistent improvement if you zoom out to a level that obscures intra-generation experiences. At the level of the actual human beings subjected to the turbulence, it was awful.