You may be right that they wouldnt want the eventual complexity but I don't think it would be impossible to say that if someone in an ad uses their existing nam

You may be right that they wouldnt want the eventual complexity but I don't think it would be impossible to say that if someone in an ad uses their existing name and likeness then it is different than just a random model smiling in the ad. The FTX ad with Brady relied heavily on his actual likeness https://www.youtube.com/watch?v=xFZqk8k4QwQ https://www.youtube.com/watch?v=xFZqk8k4QwQ