The mouth is not right. Is there really a point in fixing the mouth? I.e, what is the gain in spending time making robots look like human beings when we could m

The mouth is not right. Is there really a point in fixing the mouth? I.e, what is the gain in spending time making robots look like human beings when we could make them look like something new? It's like a cat - you want your cat to look like a cat, and not have the face of a human being. If you make a robot look like a human being, things change. You will then suddenly develop an instinct against over-working it, you'll be considerate of its feelings, even though it's just a machine. I think that for robots to become an effective part of our everyday life, they have to look like something that is not human.