Can Wikipedia be trusted?

Wikipedia is a non-profit information source that has questionable reliability. Virgil Griffith found out that many corporations and different departments of government have been "editing" Wikipedia's information on their own posts, sometimes deleting crucial information. Can Wikipedia be a trusted source of information? My response is no, alone it can not be a reliable source because you don't know where the information is coming from or whose ego it's petting. Although, it can be used as an additional source on general topics that are of no interest to current events.