Exactly my point, Biology, needs to live in a good enough
illusion, free will being a central example, to avoid extinction by depression. "Hyper Realism" kills people!
Now the opposite is also true, Utopias kill people by disenfranchising them with Reality, remember Marie Antoinette...
Philosophy is in the tricky business of trying to not make people to unhappy while making productive stuff! It is not an easy task!