Naturally, much of this extrapolation can make folks uncomfortable

Not here - I'm just pointing to the constant 'bloodflow' between theory and experiment in science, which (hopefully) constrains and disciplines the mathematical wanderings of the theorists. Apart from that it is interesting speculation and who knows, you might be onto something. You would have to do some clever social 'experiments', or clever mining of existing data, to really test your ideas, though.

You might also know the importance of Fibonacci numbers in art, architecture and music and this is where I think they have the most personal or human meaning (but I'm biased to art as meaning, not just decoration)

The most important modernist classical composer since WW2, Karlheinz Stockhausen used Fibonacci sequences in many subtle ways, in his compositions. (I highly recommend the 'multimedia' and 'text' links). This practice became so widespread and even cliched, that in the 1990s his son Simon Stockhausen composed a piece of his own called "Fibonacci is dead"

(He isn't of course - that was more of a musical polemic)