@pluralistic It turns out that Tim Wu made the surveillance-monopoly connection ... in 2013:
"Why Monopolies Make Spying Easier"
These days, America has one dominant search engine, one dominant social-networking site, and four phone companies. The structure of the information industry often goes unnoticed, but it has an enormous effect on the ease with which the government spies on citizens. The remarkable consolidation of the communications and Web industries into a handful of firms has made spying much simpler and, therefore, more likely to happen. ...
https://www.newyorker.com/tech/annals-of-technology/why-monopolies-make-spying-easier
Great explanation and examples.