Doctors and lawyers in the United States have the American Medical Association and the American Bar Association, respectively, and surely have analog organizations in other countries. As representatives of their professions, they work collectively with their colleagues at a reasonable and useful goal: quality control. It is in the interest of doctors that their med students are not idiots. It is in the interest of lawyers that their opponents are not (more) unethical. There are other, perhaps less admirable uses of these controls (too many doctors would lower all their salaries).
There is no such quality control in our industry. We have individuals at the lowest end of the ability spectrum and at the highest peaks of skill, and, we have the teaches of many years of expensive higher educations on some of our shoulders and only the passion of self-teaching for others. Neither dimension seems an accurate predictor of the other, and this should raise an automatic red flag. What is our education doing for us, if it doesn't let anyone trust your ability without first hand experience, evidence, and other proof you could give them as easily without that education?
I'll own up to my fair share of complaining about the problem in exchange for anyone to agree with me to do something about it. This isn't just an annoying situation that crops up in forums from time to time or can explain why a silly "newbie" asked a silly question. No, this is something costing the economy billions (trillions?), making all of our jobs more difficult, and actually killing people in the rarest situations. We aren't just being elitist snobs when we complain about someone taking a route seemingly inadequate compared to what we think we can do. Further, it shouldn't be considered bad to tell them so. If any of us have any difficulty being told we could improve, we don't have the dignity in our job that it deserves.
Of course, this might seem pointless. Do you think I'm just venting? If so, you may either believe there isn't anything we can do to improve the situation or that there isn't any point in improving it. Either way, my aim is to convince you.