So don't run Wikipedia from the most expensive place to live on the planet.

Wikimedia doesn't need to recruit top engineering talent; it's now a maintenance project, and it's open-source. Wikipedia content is created by volunteers, and significant editorial decisions are made by admins, who are usually volunteers. These volunteers mainly manage themselves. Most editors have never communicated with a staffer.

This "Tides Trust" is not a proper destination for donor's money. No donor thinks their money will be spent on some random project dreamed up by Tides Trust.

And it seems pretty irregular to me to treat a donation to the Tides Trust as "expenditure". The correct name for that money is "profit".