In the case of slavery, even subordination could lead to misery and death. What would have happened if every slave had simply stopped responding and refused to do work for even one minute? They'd be beaten and tortured but if they kept it up, their people wouldn't be enslaved anymore as doing so would just be a waste of money and time.
Obviously you couldn't get that many people to allow themselves to be tortured to death to prevent future enslavement, but the thought exercise makes it appear that the GP's assertion has merit even if it's not entirely practical.