A family member works for a company that writes and publishes a mandatory handbook for GPs in Australia.

One day the WHO found them and wholesale copied large chunks of their content verbatim into their online resources without asking or informing. They only found out because THEY went looking on the WHO website for the latest information on something.

At that point I started wondering just how much of big companies' work and content is just plagiarism and gratuitous theft from reputable but less visible or popular sources (also highly dependent on country, language, etc). And that was before I discovered hbomberguy on YouTube.

I worked in a hospital system for a time—those documents are often integrated through a medical system where the hospital pays a recurring subscription, and the site developers just plug things through an API to display the documents from the central medical system.

Thus, you have one document that's identical across dozens or hundreds of different hospital and medical system websites.

A long time ago, I held more weight in results from reputable places like Mayo Clinic, but even their site seems to be the same as all the others now.

But is the purchased information not good?

They’re all the same thing, same owners likely

All major public facing organizations are slowly bought out by extremely wealthy and influential groups when they get big enough for narrative control purposes because ultimately mind control is the largest source of wealth and power.