It is already illegal to use images in somebody's likeness for commercial purposes or purposes that harm their reputation, could be confusing, etc... Basically the only times you could use these images are for some parodies, for public figures, and fair use.

Now, the OpenAI will be lecturing their own users, while expecting them to make them rich. I suspect, the users will find it insulting.

Generation for personal use is not illegal, as far as I know.