Wikipedia strives for a neutral point of view. from the website:
"All articles must strive for verifiable accuracy: unreferenced material may be removed, so please provide references. Wikipedia is not the place to insert personal opinions, experiences, or arguments. Original ideas, interpretations, or research cannot be verified, and are thus inappropriate. Wikipedia is not a soapbox; an advertising platform; a vanity press; an experiment in anarchy or democracy; an indiscriminate collection of information; or a web directory."
i can imagine the advocate of any religion, idea, or political group would break these rules just by editing or placing an article about it.