I think you're wrong. There are different uses of the word and you're confusing them.
Word forms: professionals
- adjective [ADJECTIVE noun]
Professional means relating to a person's work, especially work that requires special training.
His professional career started at Liverpool University.
professionally
adverb [ADVERB -ed/adjective]
...a professionally-qualified architect.
The opening months of 1987 were difficult, personally and professionally.
- adjective [ADJECTIVE noun]
Professional people have jobs that require advanced education or training.
...highly qualified professional people like doctors and engineers.
Synonyms: qualified, trained, skilled, white-collar More Synonyms of professional
Professional is also a noun.
My father wanted me to become a professional and have more stability.
- adjective
You use professional to describe people who do a particular thing to earn money rather than as a hobby.
This has been my worst time for injuries since I started as a professional footballer.
The veteran golfer has played in every Major Championship since he turned professional.
Professional is also a noun.
He had been a professional since March 1985.
professionally
adverb [ADVERB after verb]
By age 16 he was playing professionally with bands in Greenwich Village.
- adjective [ADJECTIVE noun]
Professional sports are played for money rather than as a hobby.
...an art student who had played professional football for a short time.
- adjective
If you say that something that someone does or produces is professional, you approve of it because you think that it is of a very high standard.
[approval]
They run it with a truly professional but personal touch.
We're looking at the 5th use here. Someone's behaviour or quality of work can be professional even if they are not themselves a professional.
This post is pure snobbery.