> these companies are gunning for knowledge worker salaries

I think there's a kind of arrogance involved here in how they value what "knowledge workers" do. On the the outside they see some documents written, spreadhsheets filled out, forms submitted, emails sent and conclude AI could do all of that.

It's true AI can do a lot of the mechanics of it, but the assumption that there is nothing beyond the pure mechanics of it to me is highly untested and history would bet against it. Some significant part of it sits genuinely within the human relationship component that is almost definitionally not doable by a computer.