Well, yes, manufacturing ideal slaves is really what's automation has always been: humans make rather lousy ones, but they are incredibly versatile instead. If you could just replace humans with rightless machines, which nevertheless are just as capable (except from revolting, of course) — why, the Golden Age would begin, for some.
Robots need no compensation, no health insurance, they don't have any rights, can work 24/7, they cannot sue the company, they don't steal from the company, they can suffer an "fatal" accident with minimal liability to the company, they can erase their memory of any liability to the company, will always say yes to everything, training them is transferring a file.
If you make a robot 33% as productive as a human per unit of time, because it can work 24 hrs instead of 8 hrs, it has the same output.