Wikipedia has several perspectives just within the colloquial / perceived mission. Is it for academic integrity? For common education? For the rich and powerful? For the everyman? To record as much as possible? To cull the best knowledge from the stream?
Is it for progressive ideals, which may be opposed by the common majority? Or does it reflect a conservative viewpoint, adopting only what has proven to coalesce in society?
For who's society? What about two sides of a war? Or two equally opposing economic interests (entrenched oil vs alternative energy)?
"good" or "bad" isn't a number...