Art for it’s own sake is pure idealism, anti-materialist, and bourgeoisie self-indulgence.
The idea that art is or even can be some pure self-expression, some kind of raw creative exercise, is quite literally the height of idealism.
Brb gonna go tell my neice the finger painting she made this weekend is bourgeoise self-indulgence
Iirc it’s about not “wasting” life essence.
Genesis 38:9-10: But Onan knew that the child would not be his; so whenever he slept with his brother’s wife, he spilled his semen on the ground to keep from providing offspring for his brother. What he did was wicked in the Lord’s sight; so the Lord put him to death also.
It’s that Monty Python Every Sperm is Sacred song, but unironically