AI cannot be objective because it mirrors the bulk of humanity with all its follies. Marketing departments don't have to nerf AI because AI already outputs the irrationality and stupidity of what is on the internet.
IE, most AI art I've seen (as in imitation of hand painted work) seems to all be based on one style, Japanese anime, of which you can further dissect to see only specific styles of anime, etc. It gets so repetitive to look at that I am genuinely feeling nauesous looking at it all now.
Furthermore, AI evolves WITHIN a system of capitalism, which functions as an evolutionary framework. New AIs are selected that function well within capitalism, so we can expect AI to be supportive of technological growth and capitalism. (Of course, it many occasional espouse alternate viewpoints, but only to the level where it allows dissidents to blow off steam and belief something is being done.)