There’s no morality one way or the other. Google couldn’t care less about me; I have no personal connection with anyone there. They’ll treat me as poorly as the law allows (and then some) if it increases their bottom line. By the same measure, I’ll do as much as I can get away with to remove the bad aspects of their service. If we lived in a system where I was using a service made by a person I knew and could talk to, then maybe there’d be more obligations to the exchange, but in this impersonal setup I feel no such obligation.