A centralized register is more valuable to those who need access and control, also true for malicious actors of the unwanted kind; a single transformation can a

A centralized register is more valuable to those who need access and control, also true for malicious actors of the unwanted kind; a single transformation can affect the whole or precisely targeted parts. This is a much harder task in a scenario of multiple interconnected systems of varied design. They represent parallel solutions to the same problem; implementation and values. Compare to the necessity of genetic variation in agriculture, a single fungus or virus can now do more damage due to uniformity from optimization. Eventually we will (through trial and error?) probably figure out why nature is organized the way it is.