There are more than enough unaddressed ethics issues in ML/DS from racial bias in criminal sentencing to de-anonymization of weights to keep ethicists busy without needing Skynet.
Seems like that time would be better spent working for local justice orgs and ACLU than blocking OpenAI/Google from releasing chatbots or image generator because they fear someone might voluntarily type in some wrongthink words into input box and blame them for letting it happen.