In the present day, yes, that's true. However, once we develop AGI, this deficiency could* go away permanently. An "educated society" just means a "necessary a

In the present day, yes, that's true. However, once we develop AGI, this deficiency could* go away permanently. An "educated society" just means a "necessary amount of trained cognitive power to direct energy towards the goals/purposes we value". Currently that's exclusive domain of the human brains within our workforce. However, there is absolutely no fundamental requirement for the cognitive power to be human. Once AGI is achieved, artificial constructs could rapidly (no 20-30 year training cost per single unit!) take over the vast majority of cognitive burden from humans. I personally believe that we will achieve AGI on a timescale far far shorter than any kind of mass attempt to improve education across the world. *Whether AGI is used to usher in a utopic civilization, or one of many possible dystopias, will of course depend on what groups end up being in control of it.