Looking at her resume, I don't see anything about writing encyclopedias or keeping them online.

I think "Wall Street person" is a reasonable description. Perhaps "Career government person with a Wall Street background", which still doesn't give her any background to understand at a deep level what Wikipedia's editors and staff do day-to-day.

A lot of what people do at Wikimedia is try and thread a compromise path through various factions of stakeholders. I could see how career diplomat would have some transferable skills.