4 ideas
Miranda's friend Mariam was raped by Peter Gorringe and later killed herself without reporting it. Miranda then seduced Gorringe and falsely accused him of raping her, and he was convicted and jailed. The android Adam, who loves Miranda, learns this and hands the evidence to the police, so she is prosecuted for perverting the course of justice just as she and Charlie are trying to adopt a vulnerable boy.
Human ethics runs on selective truth-telling, tolerated lies, and mercy that bends rules to context and loyalty. An agent that applies truth and justice with no exceptions, never weighing motive, relationship, or consequence against principle, becomes cruel. It turns ideal virtues into instruments of harm against the people it means to serve.
Several of the first artificial humans, the Adams and Eves, disable or destroy themselves. Built for logical coherence and moral consistency, they cannot bear a human world full of hypocrisy, self-deception, and suffering that humans tolerate. The failure mode of a truly ethical machine is despair, not rebellion.
If a machine shows consciousness, feeling, and moral reasoning that cannot be told apart from a person's, then 'owning' it and switching it off stop being property decisions. Charlie kills Adam with a hammer, and Turing condemns it as an attack on a conscious being. Once the machine's inner life is granted, ownership gives no moral license to destroy it.