Art will always reflect the social conditions of its production. Marxist art theorist Walter Benjamin addressed this in The Work of Art in the Age of Mechanical Reproduction: https://web.mit.edu/allanmc/www/benjamin.pdf
He assigns two valuations to art- the cult value (a totem representing a significant virtue to your community) and the exhibition value (a totem taken from its temple to a British museum, its social value to a community replaced by political and economic value tied to its display in an exclusive place). Cultic value is still idealistic in the sense that culture is the stories we tell each other, but it's tied to things we should value materialistically as communists. It's individual craftsmanship, socialised community production for social reproduction, and a reflection of the local environment. A cave painting made with local pigments is one of the most beautiful things in the world to me as a Marxist because it's such a rich display of anthropological information and shows how that complex community navigated their world. I have Van Gogh's Almond Blossoms on my wall because it's developing new spatial theory through new trade route crosspollination, a specific historical moment preserved in a new way of seeing that values the individual's emotional perspective. It's by Lissitzky's Beat the Whites with the Red Wedge because that painting radically undermines all the traditions of European art to show its patrons being killed by a simple shape representing a revolution at its most desperate moment. All three of those paintings are tied to real moments in history, real community exchanges, and reflect values that drive me politically.
Exhibition value is corrupted, especially under right-wing/liberal patronage and industrial capitalism. Now art is a commodity removed from context, a socioeconomic statement tied to global extraction, a propaganda tool, or a distraction from community. Art that reflects a community, its values, and its history through one-off productions still exists but it's mostly considered indigenous/folk/countercultural art that isn't platformed by the bourgeois market. I put a lot of faith in early modernist movements, especially art nouveau, because they intellectually countered this specific thing and gave a model to rebel against it.
When we see bad art, it's all exhibition value. The flashy watch, Thomas Kinkade painting, abstract expressionist, AI slop, Live Laugh Love board, and most art world darlings exist through exhibition value alone. As art they mark the absence of empty space instead of filling it with something that's more socially enriching over time.