Simply, the working conditions were terrible during the industrial revolution<span>. As factories were being built, businesses were in need of workers. With a long line of people willing to work, employers could set wages as low as they wanted because people were willing to do work as long as they got paid.</span>
I can answer the second part the men that controlled them paid very little lots of work hours and no vacations so they made a lot of money while the people made very little