Ask the "AI Ethicists". They have to justify their salaries in some way or another.
Or maybe Google is using "Responsible AI" as an excuse to minimize competitors when they release their own Imagen Video as a Service API in Google Cloud.
It's quite strange when the "ethical" thing to do is to not publicly release your research, put it behind a highly restrictive API and charge a high price for it ($0.02 per 1k tokens for Davinci for ex.)
i.e. The Simpsons Already did it.