Besides this is an opinion piece, which contains passages comparing programmers who despite AI, make hundreds of thousands of dollars sitting at home or air conditioned offices, to bangladeshi indentured workers.
Even if we do away with hyperbole and take the 'Sara' example, programming are still one of the least physically demanding and best paid jobs out there, especially in the US, even compared to jobs needing hard qualifications. Compared to your hypothetical 'Sarah' keeping the payroll system alive, almost everyone in every profession does more work for less pay.
He also sells (I imagine not cheap) consulting on the side.
