One of the things I find fascinating about bureaucracy is how it is staffed. I'm going to make a generalization--for 100+ years the role of the USDA has been to provide jobs for children of farmers. Instead of farming full-time, they leave the farm and go to work for USDA, in the last 50 or so years after going to college and graduating from their state's land grant university. Sometimes they stay in their home state, sometimes they move elsewhere, to DC or Hawaii.
I don't mean that everyone who works for USDA in the field was raised on a farm, but that's the pattern. I suspect other bureaucracies have other patterns (like the Catholic church used to attract one boy from a large Irish family).
Here's a piece on someone who's following the pattern in Iowa.