Hi Erin,
Learning Registry isn't a company - Learning Registry is an open source community with some governmental (US ED) and philanthropic (Amazon) support to operate.
There is no business model in the core operation of the system at this time (nor one anticipated unfortunately).
Removing content is generally the responsibility of the organization who submitted resources. So if there are NPR resources in the system that you don't think should be in the system, the first step is to look at who published it. If that's not possible (some resources are not maintained actively), we can talk about removing them manually. It's best to think of the system as a public card catalog - anyone can put a card in the catalog.
I hope that's helpful - definitely write back if you want any assistance or have more questions.
Steve