The danger behind AI and other manipulative technology is that it erodes trust. We already have serious issues with trust in media, and not just the obvious cases of Russian/Chinese propaganda, but also stuff like kids getting anorexia from extremely photoshopped advertising.
Add AI on top and no one can be certain about anything anymore. Say someone distributes a fake "recording" of the US President calling for glassing Moscow, or the Serbian President declaring war on Kosovo? That has the potential to actually cost lives on a massive scale.