Plumbers. Sparkies, Brickies etc., all like to be referred to as Professionals. If they want to be seen as 'Professionals, the first step is to act in a 'professional' manner.
In my experience, Professional behavior is void of both verbal and physical abuse. When some of the so called professionals on this site realise what professional behavior is, then we will all have greater respect for them.
Remember respect is earned, it is not a right just because you have some knowledge that some of us 'Numpties' don't have.
Doctors usually know more about medical matters than the rest of us, but they don't (as a rule) take this advantage as a reason to verbally abuse their patients, similarly the legal and Engineering professions.