Wikipedia is a huge site that requires a lot of space. More space than most websites out there considering the vast amount of information on their site.
They also get more visitors to their site than you could ever dream of. That requires a huge backbone with a massive amount of bandwidth.
These servers will of course require power and adequate cooling. (I've been in a datacenter that runs Costco's servers...it is huge, HOT, and expensive, and Wikipedia's needs will blow that out of the water).
Their datacenter's will require rent, it's highly unlikely that they own the property this is on. Which means they also are outsourcing for a security company. These are payrolls that they indirectly pay for, without being one of those 150 employees.
And that's just Wikipedia. Their company runs more than JUST Wikipedia. (Just look at the website to see their lists of other sites)
There is a good chance their lawyers aren't considered employees. Lawyers that do that kind of work don't work for 30,000 a year.
Now consider all the technical work. Developers, engineers, these are people that went to school for this shit. They didn't fill out applications to McDonald's, Pizza Hut, and Wikipedia. They are going to expect a certain lifestyle...or they could just go work somewhere else. Being non-profit doesn't mean your employees are non-profit. They will require wages on par with what they'd get paid elsewhere.
So, in addition to your math being nothing but pure conjecture (Without true knowledge or consideration of the facts)...you need to realize that being non-profit does not mean "can't make good money". It simply means they must meet federal guidelines, in order to achieve tax-exempt status.
[FONT=RobotoRegular, arial, sans-serif]"[/FONT]The businesses may not allocate profits left over, after paying employee salaries and bills pertaining to operations, to any individual or private shareholder. These organizations may not campaign for a particular political group or cause; nor may they attempt to influence legislation."
So in reality...they have every right to put millions of dollars in their pocket if they wanted to. (Whether they are doing that or not) They offer a free public service that anybody is allowed to use, regardless of your political or religious beliefs. In return, they are tax exempt...and they are not allowed to donate money towards a politician that you don't support.
Short story long...they're simply asking for donations, rather than posting pictures of hot girls that redirect you to dating sites. And they don't use scrapebox to gather articles that other people wrote...then spin them to generate content so they can make easy money. You should just be grateful for what they provide...or don't use it.