Look at phoenix program in Vietnam. More recently you have that https://foreignpolicy.com/2014/04/03/cuban-twitter-and-other... .

Also declassified files about mkultra and mknaomi mentioned USAID but I didn't read the specifics so it might not be that bad.

But yeah, I've never read the book you're talking about, but USAID usefulness wasn't so much in medicine and food (which are still important), but in organisational, logistics and administrative support to NGOs that really increases their effectiveness, and especially small NGOs like libraries without borders or OLSF( my cousin directed this one for a few years, that's how I know how useful USAID was)