Well let me give you a better example. Because of the professional standards held by certain professions (medical doctors, lawyers, accountants, engineers, etc)

Well let me give you a better example. Because of the professional standards held by certain professions (medical doctors, lawyers, accountants, engineers, etc) - until they recently relaxed the rules, Canada required passport applications to have an occupational guarantor (of a certified profession) who knew the applicant for a minimum amount of time to sign a passport application. The average person doesn't know the difference between a "Professional Engineer" with a PEng and a "professional engineer". If someone like you were to say "I'm a professional engineer" and sign the passport application and it was caught, the person's passport would be invalidated and the signing small-e engineer would likely be fined for misrepresenting him/herself. You could actually say that in Canada at least, PEng engineers actually have an elevated status in society like doctors and lawyers.