Socrates was the chief saint of the Stoics throughout their history ; his attitude at the time of his trial, his refusal to escape, his calmness in the face of death , and his contention that the perpetrator of injustice injures himself more than his victim, all fitted in perfectly with Stoic teaching. So did his indifference to heat and cold, his plainness in matters of food and dress, and his complete independence of all bodily comforts.
Artists used to argue about art for art's sake versus social realism etc, and now it's like the most dominate argument is related to "art for the market's sake. " It's a necessity, somewhat, for some people.