By people with the knowledge to speak fluently on the subject, perhaps. But you're no more capable of judging my medical needs than I am of yours. It's one thing to say "Hey, I think it's a bit odd that I can get [drug] after a five minute video call with a doctor I've never talked to before" and another thing entirely to say "I don't think this person should get [drug] because I think there are other things they should be doing to treat their condition."
The first of those is an observation of a deviation from expected behavior - most of us are accustomed to needing to go to a doctor in-person, and perhaps develop a relationship with them before they start suggesting prescriptions. The second is a nuanced medical decision that requires detailed knowledge of the patient's medical history as well as a background in biology, chemistry, and pharmacology.
Democratizing technical fields is the stuff of communism parodies.
But what you're describing there is a form of credentialism (and a form that allows certain entrenched financial interests to carve what they want out of the system).
Where the people who do have the more in-depth knowledge (thereby, seen as the only ones qualified to "make the judgement call") are influenced to press down a specific path at the behest of other entities. In lay terms, if a certain group of people are deemed to be "the only ones who can make the call", and those are the same people who are perhaps getting some "perks" from the drug companies, then one has to wonder "do they really think this is the best approach?...or do they want to keep getting invited to those conferences at the resort?"
And I'd suggest there's a spectrum with regards to whether or not a person has to be deeply familiar with a subject to speak on absolutely all parts of it. There's levels to it. If it was subject about the nitty gritty of how electrical impulses control heart rhythm, then yeah, that's best left to a cardiologist. However, not every subject involving human health and nutrition is that complex and in-depth.
In same way that, yes, my mechanic knows a lot more about cars than I do, but I don't need to have the same level of prowess to accurately assess certain car problems, and to know that if after his meeting with the STP sales rep, he starts recommending expensive brake system flushes every 3,000 miles, that it sounds fishy.
Regarding diet/exercise/nutrition, it's one of the simpler concepts that's very approachable. So simple in fact, that they're able to teach it to school children (or at least they used to when I was in school, not sure what they're doing nowadays)
With regards to the concept of overprescribing, certain concepts can't be detached. In a world where commercials are blasting people with ads (with celebrity Cameos), and you walking into the waiting room that's littered with brochures for "if you think this sounds right for you, ask your doctor about <insert brand name drug here>", those are basically fostering an environment where we're not "deferring to the experts". The people with the power of the pen are being pressured in a certain direction.
"This is a decision between me and my doctor, he's the expert, so this was his call"... I'd call shenanigans on that, because that's not what's happening all the time, patients are specifically asking doctors for specific drugs that they heard about elsewhere (that they otherwise wouldn't have even known the name of).
The proof is in the pudding. Drug companies are spending billions and billions of dollars in advertising, telling patients which drugs to ask their doctors for before they even go in for the visit. And that spending has been steadily increasing over time. They wouldn't keep sinking that kind of money into advertising if they weren't getting a return on their investment.
In those scenarios, it's not actually a doctor's assessment in the true sense, it's a self-assessment with a compliant physician who's willing to grant the request.
Honest question, if there were no ads for GLP1 meds on TV/Facebook/Etc prompting people to go ask their doctor for it... Do you think the prescribing rate on those would have increased the way it has?