Is there a Case for Robot Slaves?

I have tried to lay out his argument in as succinct and straightforward a manner as possible. This means that some interesting digressions and sub-arguments have been neglected. Still, I hope I have made his central claim pretty clear. It is that if we could program a robot to deeply desire to serve our needs and interests, we would not do wrong by bringing such a robot into existence. Thus, if we do not do any wrong, it would follow that the creation of a robot slave is permissible (it might also be desirable, though additional argumentation would be needed for that).