This, for me, has been the question since the beginning. I’m yet to see anyone talk/think about the issue head on too. And whenever I’ve asked someone about it, they’ve not had any substantial thoughts.
I cannot see us living in a world of ignorance where there are literally zero engineers and no one on the planet understands what's been generated. Weirdly we could end up in a place where engineering skills are niche and extremely lucrative.