I think you're laboring under a misconception here and as a consequence we're kind of talking past each other. The post author is quoting Dan Luu, who brought

I think you're laboring under a misconception here and as a consequence we're kind of talking past each other. The post author is quoting Dan Luu, who brought up "doctors and lawyers" but that's not really the topic of the blog post; the post author himself started out at fairly low pay (Take a look at the "making more money" link, he started his career out at $65k pay and I have rather good reason to know that the FAANGs were paying much more than that). So, the subject is not "high-paying serious tech jobs", just run-of-the-mill programmers.