I got asked that last night too!
"piloto, doctor, abogado?"
I said "no," laughing and answered back, "I am in internet porn."
I think she was just as impressed as if I were a "piloto, doctor, abogado."
I think my watch (G-shock) may through them off. It is not fancy just not a type you see a lot here.
It Likely All Balances Out
One's professional prestige may be something about which the girls talk amongst themselves, but revealing such information (which admittedly I am guilty of doing myself- - abogado) may inspire ideas that they can extract more money from you. Regardless, as a gringo one probably will be charged more. Just a thought.