I have seen "czar" used as an informal title to denote ownership of a domain, e.g. the "security czar."

I suppose it originates from the term "border czar" and others in politics e.g. https://www.politico.com/story/2009/09/president-obamas-czar...

No, a Shah is a hereditary ruler (a King), whereas an Ayatollah is more like a Bishop (ie a religious leader, but not the top guy such as the Pope in Roman Catholicism)

Data pope?

Thanks for this one, putting in request to my manager to change my job title to data pope, since our titles are all meaningless anyway might as well have a fun one.

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