> You can index and organize the content of an intranet of every large organization.

Good luck. The magic of the internet is that everything is public and interlinked.

Usually within a company the incentives are such that information is more tightly controlled. A software engineer doesn't see purchase orders and an HR specialist doesn't see software assignments. Usually a directory is more useful than a search within a company. Obviously there are exceptions.

I've worked at several large companies and all are very bad at documenting anything.