Definitely preferable, but the % of the higher strata's that don't speak solid English is miniscule.
Fact is those who hang with the whore class only know the whore class. They expose their pure ignorance of Dominican society and culture when opining beyond the whore class.
i posted this before, but i hang out at a spot where the women arrive in their Bimmers, and sport real Gucci bags. they do not need gringo to spot them 500 pesos for the salon. they would not give me the time of day, either, but they respect me because the men they associate with pick my brains, while i pick theirs. i can't be all bad if they will associate with me. strictly business, with no delusions that they would want me for anything. Belkis would associate with me, because every chica you will ever meet has one thing in common; THEY ARE IN DEBT. they all owe the colmado, the salon, the Haitian woman who peddles clothes, and a few miscellaneous relatives. you are only debt relief, since Joaquin never worked a day in his life, and cannot liquidate their obligations to the loanshark.