@rmdes I had the same thought a while back, but didn't do anything other than muse on it. Thanks for sharing!
The phrase "who pays the piper plays the tune" came to mind, could be a tagline?
This project looks at the funding of UK politicians:
https://www.tortoisemedia.com/audio/the-westminster-accounts/
Some global analysis for news orgs like that could complement what an extension can do.