In regards to your mention of the various blue colors, I simply did not mind it because they were, at least in my eyes, all official versions of blue. I am bothered not by having multiple colors, as much as I am by the fact that there was not an continuous purple to deem the "official purple."
I also believe I may have overstated the frustration I have towards purple as a whole. I believe the "chaos" (as you referred to it) might be unworthy of its title. I would describe my experiences with purple as a "moderate discord." It comes short of chaos by great lengths, and if it appeared to be at that level, then I certainly apologize,as it was not my intention.
Edit:
I guess, in summary, my problem is thus: Purple isn't used enough, and so I do not like that TLG has only given, what I view as unofficial versions.