Wikimedia employs a lot of people, I personally do not donate because I believe they employ way too many. Also pretty much all costs are already covered by corporate sponsors like Google.
100 employees is too many? (70k per person)
* that 140k and 70k include things like healthcare and benefits too, I bet.
Have you considered many of them that are on the payroll might have other jobs and so the volume is to make up for the fact that they're not all 40+ hours full time? I think this is much more complicated than we could first expect