And, for the umpteenth time, go call ANY professional the wrong title multiple times, and see if they don't correct you. I guarantee they will.
I had a teacher in 7th grade who had her PhD. She demanded to be called Dr, and if you continued to call her "Miss", she'd give you detention. Go call an RN an LVN multiple times, they will correct you. Go call a DO an MD multiple times, they will correct you. That's why police introduce themselves as "Officer so-and-so" or "Deputy so-and-so" or "Trooper so-and-so", as that's their proper title.
Why is it so bad that we want to be called by our proper title? Why must we be relegated to a task, and not our title? Common name or not, it's wrong.