Let's say I donate money to Wikipedia, and then I end up having some major scandal that has a Wikipedia article written about it. So, I put some pressure on Wikipedia to censor or remove that page. Why is everyone so sure that Wikipedia is so much better equipped for resisting pressure from individuals than from businesses - especially considering that individuals are much better suited for crafting personal relations than a corporation would be, and the damage to a person is much easier to empathise with than damage to a corporation.

Wikipedias force in this regard is that their operating budget is small potatoes: they can easily afford to shun any one donor - commercial or personal.