As for my opinion, I am an economist by training. There are many people, many educational systems; the risks stemming from the mistakes people make are idiosyncratic, and they average out in aggregate (to an extent). On the other hand, there are just a few SOTA models. If all thinking is done by them, the aggregate risks will be much larger, I'd suppose.
You expressed the fundamental principles well enough.
Peoples are not as smart as we consider ourselves on an individuated real time basis. Our failures average out and a model for success is easily replicated once observed.
Individuals are not actually as engaged as we imagine, especially when we seclude, or worse yet become consumers of talking heads narrating and doing our thinking for us.
What happens? While the middle enjoys the comforts and conveniences of modernity they will become the marginalized. Within a generation obsoleting themselves without even recognizing the signs, and some fringe will fill the gap and the cycle will continue.