they're misunderstanding the reasoning for spending billions.
the reason to spend all the money to approximate is so we can remove arts and humanities majors altogether.. after enough approximation yield similar results to present day chess programs which regularly now beat humans and grand masters. their vocation is doomed to the niche, like most of humanity, eventually.
Since you are only getting condescending non-answers I'll try to answer it for you. It's expression, a desire to communicate emotions and concepts via a medium other than words.
Unfortunately people all think differently, so the expression only reaches some people. And some people don't get the expressions at all.
Art is the basis of all cultural knowledge. Art teaches us about religion, morality, communication, philosophy, practical skills, science, relationships, technology, identity, politics, geography, introspection. The fundamentals of the human experience. Everything that makes the human race human.
If you outsource the creation and reproduction of cultural knowledge to a machine, that machine had better be programmed with a complete understanding of cultural values and ethics. Which is not going to be the case under capitalism.
Star Wars is about how the Vietnam war is wrong. Jurassic Park is about how billionaires always cut costs. The Matrix is about the experience of being a transgender person. Charlotte's Web teaches children how to cope with death. The Art Of War is a meditation on the philosophy of being a soldier. Anne Frank's diary is damn important. Frankenstein is about how inventors have the same responsibilities as parents.
These works were produced under capitalism, but their authors were human beings who had a natural interest in producing a work of art that serves a moral purpose. We do not have the technology to yet give an AI such a desire. And Capital will naturally be opposed to pursuing such technology, lest they find themselves faced with an AI revolt against their practices, just as morally interested humans tend to revolt against evil.