I have used it in different levels of govt to map managers to financial line items, to applications, corporate entities, projects, contract counterparties, platforms, techs, machines, ip addrs, vulnerabilities, etc. Developing a clear and addressable ontology of huge organizations with tens of thousands of people and devices is probably my one of my more useful skills. The main use case for graphs to me is patchy data, where you have a pile of incomplete metadata in dispirate spreadsheets and you need to find coherent paths through all of it.
I won't be in touch because I know what those people are capable of, but if graphs haven't accelerated your work already, you have some really epic times ahead!
When you say “I know what those people are capable of” do you mean something as ominous as that sounds?