this problem is only with Egyptians.
We actually, Egyptians, tend to give titles to whom we talk to. I'ld say this is out of extra courtesy, sometimes for licking a@$. But it went as a rule to the extent that the mechanic is called "PashMohandis" never to mention Pasha, Ostaz and manu other titles used for diferent occupations.

But do you see any harm in that?