This conversation is not to discuss whether AI can reach the level of tech to be made sentient, but what would we do with a "sentient" robot.
The first strong wide AI will probably not be sentient. It will be intelligent, and capable of learning things, but it will not achieve what humans describe as sentience, and by the time it does it will already be beyond such trivial factors as emotion (which is a result of chemicals in the human body anyway). Actually, I believe that no AI will become "humanly sentient" unless it is designed to be so. I realize that this may not apply, as the singularity may happen so fast that society will not have to deal with this problem because by the time they even think about it, AI will already be in power. I think that the singularity will be slow at first, and will take a few months to actually develop more AI that will reshape the world. In this supposed grey period we may have (relatively) human level intelligence in AI. And this gets down to the actual question.
Point: At what level does an AI deserve to be treated like a human. Is it a sentient intelligence like you or me. If not, at what level does it deserve human treatment. What if a human brain was replicated digitally, and memories, emotions, and experiences, would that deserve human treatment. What if an AI was produced and placed in a human body, would that deserve human treatment. What about other biological AI, do they deserve human treatment.
Counter-Point: At what level does an AI deserve to be treated like a machine and not a human. What if a cat brain is replicated and implanted with memories and emotions (animals have emotions, just the same as us, its just chemicals firing in your brain and body). Does this Theoretical cat AI deserve human treatment, does it deserve cat treatment, or does deserve to be treated like a machine. What about that grey area in between cat brain/intelligence and human brain/intelligence.
Could a completely new type of sentience be produced, should it even be treated superior to us. These are the questions we need to be asking now.
TL;DR: at what level does AI deserve to be treated like a human, and at what level does it deserve to be treated like a machine.