I’m intrigued that you’ve experienced a world where people learned Lisp just to get a job. Would you please elaborate? I confess that I can’t imagine an employer that desperate for Lispers today.
The driver is actually that the company needs people with a specific skillset, and their tooling is in lisp. As I saw elsewhere on HN today: "you can teach a biologist to program, but you can't teach a programmer biology". I don't think anybody is "desperate for lispers" unless their senior guru is recently departed.