I guess I'm not sure where you're going with this... On one hand your saying you like your audiologist, which would mean you have some level of trust in them. On the other hand your speaking out against placing value on the audiologists position... It seems somewhat contradictory.
I don't have any experience with Cardiologists, but if someone were to come here and discuss heart problems, I'd recommend they go see a cardiologist. Just because I don't personally have experience with one doesn't make my statement any less true, nor does it make the Cardiologists professional input null and void.
A cardiologist went to school to study something specific, just as an audiologist went to school to specialize in a very specific field as well.
Not all "specialists" are trying to make a buck. They are trying to help people. If a person doesn't want HA's, an audiologist cannot (and most would not) force it on a person. They take the clues from the patient.