All professions are conspiracies against the common folk

From Informing Ourselves to Death by Neil Postman.

The great English playwright and social philosopher George Bernard Shaw once remarked that all professions are conspiracies against the common folk. He meant that those who belong to elite trades - physicians, lawyers, teachers, and scientists - protect their special status by creating vocabularies that are incomprehensible to the general public. This process prevents outsiders from understanding what the profession is doing and why - and protects the insiders from close examination and criticism. Professions, in other words, build forbidding walls of technical gobbledegook over which the prying and alien eye cannot see.