I suppose that must have a lot to do with the attitude of the instructor/s that those novice divers encounter during training. If the instructor demonstrates an 'I am an underwater god' mentality, then a student is likely to be less inclined to question other dive pros subsequent to qualification.
I've read enough horror stories here on SB.... and seen enough 'cowboy' professionals with my own eyes. I make sure that my students are educated about the need for personal responsibility...and encourage them to remain cynical about dive pros and insta-buddies. If in doubt, go back to basics and stick with the advice and knowledge you gain in training.
I'm happy for my students to know that I'm fallible as an instructor. When we do buddy checks (I often teach one-to-one) I stress the need for them to not make assumptions - I am human, prone-to-error and need their 'back-up' in a very real sense. I doubt I'd ever need a student's assistance...(but who knows?)...however, at the very least, it adds an element of honesty to the training and dispels any false misconceptions that a student might have about more experienced divers.
I believe in training responsible divers - that means not sugar-coating my training, letting ego get in the way of education or missing an opportunity to shepherd a student into a more self-reliant and self-determining state of mind.
Apologies to my fellow instructors and divemasters.... but my students wouldn't trust you as far as they could throw you.... until you can prove to them otherwise... and even then.... I'd hope they wouldn't succumb to peer (or even worse,... pro) pressure..
Not every instructor is going to be as effective as you at teaching that to every new student. Most new OW are simply not going to be as independent, skilled and self assured as yours.
Expecting all the brand new divers to be able to spot and avoid all the bad DM, "shut up and follow me" scenarios in the travel dive industry would be wonderful, if it could work.
Rather than us continually pointing out how a new diver should not have followed a poor DM, we should focus on exposing those bad DM's, and/or changing the attitude that it is OK to take divers into situations they are not trained for or are not experienced enough to participate in, even if the them self might not be aware of the risk.
We divers should never tolerate such risk taking by ops and/or DM's. Anytime we witness an op taking a diver into such a situation, and we do not call them on it, we are part of the problem. While the new diver may ultimately be responsible for their own safety, our industry should demand much, much more of any "professionals" taking divers, new or experienced, into the water.
If we believe that SB has the reach to change new diver's attitude, how much more effective might we be if we put our focus on continually monitoring the quality of the dive world when we see things we feel are not right? We are more likely threw the internet to be able to effect the bottom line of the offending ops, than we are to reach each and every new diver coming down the pipeline, IMO.