“It is a fact that throughout human history humans have attempted to enslave one another. So long as one can compel someone to work in some fashion that does not reflect economic pressures you can profit from this, and some percentage of people will. That person or organization will succeed on a profit basis where others who do not adopt that policy will fail. This inevitably encourages such behavior until only those who engage in it remain in business!
As such the only constraint on such behavior is laws that are actually enforced so that the cost of such behavior is higher than the benefit.” – Karl Denninger