The fact that robots can't have a will of their own is where his technology flops. If you can't build a robot to make decisions on its own, then there's nothing a human being can build that can be compared to a human being. For instance, imagine changing your travel plans at the last minute – robots can't do that.
Robots are meant to assist human beings in the workplace. A fully automated company with no human interaction doesn't make sense. What's the point of products if not for human beings to buy and use? I'm not worried about robots taking over human beings. Instead, human beings will use robots to be more efficient in their workplace.
As the saying goes, "You shouldn't be scared of AI taking over your job, but be scared of that person who can control AI." We will be able to control these AIs. Let's just watch what Elon Musk builds and hope he doesn't hurt humanity in the process.