I think that nowadays it is hard to distinguish an authentic, human writing from an AI writing, written by GPT for example. Therefore this human writing will become more and more expensive.
I draw an analogy now between a hand-sewn coat and a Chinese-made coat, the hand-sewn coat has a much higher monetary value than the Chinese-made which spoils more quickly.
Human writing, even if it will still have errors here and there, will be in high demand because there will be fewer and fewer people who will bother to read and write. Just as nowadays there are fewer and fewer people who make handmade things, which are in high demand and well-paid.