The "value of a human" - same in this age as it has always been - is our ability to be truly original and to think outside the box. (That's also what makes us actually quite smart, and what makes current cutting-edge "AI" actually quite dumb).
AI is incapable of producing anything that's not basically a statistical average of its inputs. You'll never get an AI Da Vinci, Einstein, Kant, Pythagoras, Tolstoy, Kubrick, Mozart, Gaudi, Buddha, nor (most ironically?) Turing. Just to name a few historical humans whose respective contributions to the world are greater than the sum of the world's respective contributions to them.
Have you tried image generation? It can easily apply high level concepts from one area to another area and produce something that hasn't been done before.
Unless you loosen the meaning of statistical average so much that it ends up including human creativity. At the end of the day it's basically the same process of applying an idea from one field to another.
Most humans are not Da Vinci, Einstein, Kant, etc. Does that make them not valuable as humans?
Yes, I've tried AI image generation, and while it's impressive, it's also - at the end of the day - just as bland and unoriginal a mashup of existing material as AI text generation is.
All humans (I believe!) have the potential to be that amazing. And all humans come up with amazing ideas and produce amazing works in their life, just that 99% of us aren't appreciated as much as the famous 1% are. We're all valuable.