Noah was the first person, but he was not successful. He would talk to them about the bad stuff they were doing, try to explain why bad behavior is damaging: if you are robbing someone today, then tomorrow someone else will rob you, better to have justice and work hard. But he did not explain/show them an alternative of how to live a good life (ad kan Sforno, R Schwab). He would fit well into CR, lambasting people with opposing views.
