Classic Caesar

I would personally argue that education is important for reasons other than understanding what it means when someone gets violent with their salad sauce, but it's definitely a factor

Education is, from a certain point of view, only good for improving your quality of life, understanding more jokes and enjoying more jokes will be a measurable increase in quality of life that will provide at minimum some benefit where as other forms of quality of life improvements such as getting a better job aren't as solid in the fact they will definitely happen so really that function of education is more important than others for the individual

I don't think this is as much a function of formal education, as a reflection of people's inate curiosity about the world and their ability to retain interesting trivia picked up by osmosis. By way of example, we might all have been taught about this incident in Ancient history, but I doubt that too many of us can recall all the surrounding facts, motivations and players. Rather, it was years of this incident being referred to in pop culture-Shakespeare, TV/movies and printed humour, that has cemented Caesar, Brutus and the Ides of March into our collective memories. The original meme is clever and counts on our shared exposure to that tidbit of history for it's success. The new meme counts on our incredulity that someone could sleepwalk through life without picking up this bit of historical trivia.