That struck me too:<p>No mention of doctors, lawyers, civil engineers, architects, librarians, actuarians, dentists, pharmacists .. in that article.<p>These all professionalized in the late 19th&#x2F;early 20th century, to great benefit of practitioners in these fields, in terms of remuneration or job security or even both.  If those get to benefit from rent seeking, it is not surprising that others would seek the same advantage.