The major social change in the position of workers that was brought about by industrialization was a loss of autonomy and dignity.
Before industrialization, workers were their own bosses. They decided when to work and how hard to work. They generally did skilled labor. After industrialization, this all changed. Now workers went to work when they were told to and worked until they were told they could stop. They were now doing less skilled work, just operating machines instead of crafting goods themselves. This all led to a loss of autonomy (being their own bosses) and dignity (being able to do a skilled job).