Things like the debate over global warming are purged, and Wikipedia presents one side of an argument as 'consensus'. What Wikipedia's insistence on 'consensus' means is that only one view will ever be presented and the most aggressive group purges all dissent. And the most aggressive group over there is an authoritarian left-wing - that hates sound money. Knowledge is power and their goal is to limit and shape everyone else's. NPOV is of course totally Orwellian, they've simply declared their POV as 'neutral'.
Wikipedia may have a left wing bent to it. If you don't like it, participate in it and if that does not work start your own. The wikipedia people are even kind enough to give you all of the tools for free! You can even with a little more effort populate it with the current version from wikipedia, lock it so only you and people with opinions you like can edit it, and create your own version of the truth.
I have disagreements with how they operate and therefore do not contribute, but in general they are a valuable source of information.
(que all of the users who will quote errors in wikipedia.....)