Students cheat when grades are more valuable than knowledge.
Point is, it's not a problem with academia and it's not easy to solve. If we could just magically peer into people's minds and figure out what they know definitively then we'd solve a lot of world issues. Alas, we must settle for numbers and papers instead.
We already have a real-world scourge of tech bros who view learning about other subjects as beneath them and who rate their ignorance as more valuable than experts in that subject. This wonderful new world of AI is only going to exacerbate that problem.