rory, it's coincidental that last week I took out my 1st ed. hard copy of CofC from my storage boxes in a closet and also began rereading it after 30+ years. I've got a 4th ed. electronic version, so I thought it would be doubly good to see how I would react now to his book and my marginal comments made in it from so many years ago, and to compare how the book changed as it has gone thru its revisions. I've only had the time to go thru a few chapters, but it has been revealing on several fronts.
As to your question, I remember that, as you said about others, it took me many years to deal with my increasing doubts as I witnessed the organization's internal corruption that I saw while rising within it (indeed your "catalyst for change"—nice phrase). I had filing cabinets filled with pre-electronic files of papers, and a large library of non-organizational books and WT publications. I felt it was necessary to have as much info as I could available to me so I could learn as many of the facts as possible and therefore make an informed decision about my future (of course, I've jettisoned much of it over the years, but I still have a fraction of it). So as others have already expressed above, I do not find it at all odd that RF kept documents and records long in advance. In fact, I would expect that.
Unlike RF, I realized that trying to change things from the inside was futile and likely suicidal, so I gradually and carefully bailed in a well planned way before issues would come to a head. In Ray's situation, that was not possible since he'd served on the GB. Fading was not an option in his case. For him, it was more like having become a "made man" in the Mafia: no one can leave (the GB) like he did without a hit being put out on him.