Wikimedia's expenses are almost ENTIRELY going to staff. Their balance sheet for 2023 included $101m in expenses for salaries and benefits out of a total expense of $160m. Their hosting was $3m. So yes, I'm confident their network links and servers cost almost nothing, and they don't need anywhere near $101m in compensation to keep the lights on when the VAST majority of their content is contributed for free.
https://wikimediafoundation.org/wp-content/uploads/2023/11/W...