Perhaps the high profile resorts, publics, and privates don't suffer from this as much, but how much does turnover and the ensuing loss of institutional experience & knowledge factor in to this?
In my line of work, losing key personnel can have quite an impact in the absence of documentation or "brain dump" before the departure.
This is in my limited experience probably the most significant factor in changes to courses.
The scourge of the new Chairman, President, Board or Committee wanting to make their mark, especially if there is money to burn.
I know an example when c.25 years ago a Club (post careful research & planning, public presentations, and member votes) determined unanimously (not a single member dissented, publicly) that they wished their course to be restored as far as possible back to the ODG's original intent and design. Remedying 80 years of piecemeal changes (Captain's bunkers etc.) which conflicted with the known original intent.
The Club then, post restoration, thrived during the golfing (& economic) downturn as its course differentiated itself from local competition and the membership grew, the course's unique character key in that.
Then other local courses closed, new members came from those, then newer golfers post Covid joined too, and now both have filled the leadership positions.
This group (of newbies, with little knowledge but high self-worth) have now steamrolled the membership (abusing their powers), along with a commercially focused architect (who knows little to nothing of the ODG's courses or principles) to make wholesale, strategic and aesthetic changes under the guise of a "
Bunker Improvement Plan" (including the ubiquitous rubber lined white china clay ink-blots) that then morphed at the last moment into the oxymoronic "
Course Improvement Plan".
BTW this was not even the architect's desired plan, but he allowed the Club to modify it extensively just to get the job through against vocal resistence, but he signed off on it instead of educating the decision makers or simply walking away.
He is a busy architect who could have done so commercially, but chose to dilute his body of work by keeping the business instead.
It is a travesty for that club & course, but no doubt there will be another chance to return the course to what it could have been and indeed was in the next iteration, which surely comes as those leadership bodies rotate again...and so the clock turns...and institutional memory fades...
One day I may write a book on this (anonymous) Club and what happened, in far more detail, to document how NOT to go about looking after a classic course. We learn more from failures and this is an abject one. Perhaps it will save other Clubs from themselves in the future...
I think you hit the nail on the head...it's human factors and arrogant stupidity that causes change...in Golf inertia can be a very good thing