IME, the majority are usually way off base. If that is true, then following the herd probably isn't the best strategy. Unless I suppose one's ultimate goal is to be one of the herd. Which is a distinct possibility for many since herds are usually rather large.
Since dealers are all over the map much like the rest of us plus they have motive, I'm guessing we'd stand a better chance going it alone. In my own case, of the 50 - 100 products I've owned over the past 20 years, I can only recall one product I purchased in 2000 after auditioning while all others were purchased "blindly".
Indeed we do witness many varied chosen paths. But still I've seen little / no evidence of any truly successful instances of this many-paths-toward-a-common-goal philosophy. Quite the contrary, IME, the more advanced the performance, the fewer / narrower the path. Moreover, when we consider everything about high-end audio is subjective, including our listening skills, I'd think it rather difficult to measure success much less define a sufficient meaning of the word.
So much of what you say in this post may seem thought-provoking or insightful but to me it just sounds a bit pie-in-the-sky or sugar-coating reality. For example. If you look around the industry you should notice there seems to be a tremendous lack of real leadership in perhaps every sector and perhaps unlike any other industry. Without leadership, herds tend to wander aimlessly at least in other galaxies. For those striving to generate revenue, there can be real advantages to lack of leadership / herd mentality e.g. thinking outside the box is frowned upon, maintain the status quo, etc. Hence, contrary to your thinking some have a strong sense of what we're aiming for, I'd venture the probabilities are rather high that, to one great extent or another, every last one of us (including mfg'ers, writers, researchers, dealers, etc) is flying by the seat of our pants (think all over the map) while staying within the herd. Better yet, perhaps there is a percentage that has a strong sense of what they're aiming for, but I suspect most of those types may well be chasing windmills.
You seem pretty certain of this.