I think that is a fair question to ask but I don't agree with your conclusions.

You are essentially asking why bother investigating and forming opinions and value judgements on the the use of new technology. Humans use opinions and values to decide how they want to interact with the outside world. Even if the technology exists and no living are harmed, people can find it distasteful. people can decide not to support what they find distasteful. They can decide to voice support actors unions if the issue ever comes up. They can tell their friends and family how they would like their likeness used as these technologies become more prevalent.