I reiterate that the servants of the ruling class may decide to write history any way it serves their purpose, but it won't wash. When I was in graduate school I was made to learn this "history," or rather to slide down that slippery deconstructionist slope that leads to their "history" and I left academia in disgust. There are many others who did so as well. And, when you lose your best and brightest, when they decide that your presentation of reality is hogwash...then you go the way of the scholastics...down the hole of oblivion.
The point is that a society with any hope of survival must have a layer of "selfless" artists, teachers, thinkers who articulate and express the social vision that make it a desirable, vital thing. Advertising only simulates this activity and it isn't enough. Your understanding of history, art, and culture will not vanish. It will simply go underground. It will survive and be communicated by people who care about, dare I say it, truth and beauty.
Joanna