Direct costs maybe but how much of the staff cost is staff required to make the site run?
Even staff is not that high. They have long ago eclipsed the cost of running it and now donate/fund causes that are in line with their views. https://upload.wikimedia.org/wikipedia/foundation/2/26/Wikim...
I think the use of the word "eclipsed" is a a bit odd. Eclipsed in this case, and the literal sense, just means it's covered. In this case, revenue exceeds costs by what, 8%?