I understand your point, but you're overlooking who does the adapting. Oral stories were naturally updated with each generation, and I think that's wonderful. However, in this case, we're discussing literature being adapted by a global corporation with shareholders aiming to please a broad audience.
If Disney were to adapt The Lord of the Rings in 100 years to reflect new "lessons," I would be relieved to no longer be around to see it.
If Disney were to adapt The Lord of the Rings in 100 years to reflect new "lessons," I would be relieved to no longer be around to see it.