is that people work for these megacorps because they need the money to feed their family and pay for a house, etc. They take their kids out of school and then have them work for the Swoosh company, and then take the small amount of money they get paid and then use it to buy food, clothes, and then materials to build a house on property after they buy it. Not working those jobs, they cannot afford decent clothes, food, or property. They will live off the streets, live in tents, and go hungry for many days unless some kind soul gives them some food or money. They will scrounge up what they can, but most of the time they starve. The Megacorps know this, and they also know that if they fire them, they will go right back on the street and they can hire someone else's kids.
Did you really think that other countries had it as good as we do, or paid their employees as much as we get paid? If any country enforces rules against child labor and minimum wage laws, then that factory moves to the next country over and their people get upset that they lost out on earning money and get irate at the government.