Earlier quoted context omitted.
There seems to exist a tendency to move sweatshops to countries with less effective work(er) protection laws rather than automating jobs (eg: from China to Vietnam and so on).
That's because people are still cheaper than robots. This won't last forever if current trends continue.
Free labour is one of the things which led to the fall of the Roman empire. Nobody needs technology when you have slaves. And there are a lot of slaves in the world, just read the latest UN report on it.