This assumes that humans in knowledge-based industries will maintain a significant cost-effective edge over AIs in some economically relevant skill domain. There's no reason to believe that will still be true in, say, 10 years.
It's the same thing. These things are still just tools that need to be used by humans. Fair enough, I can't really see 10 years into the future, but I don't think anyone can, and there's nothing about these tools we're developing today that makes me think they're immune to the economic effects of automation throughout the last 300 years.