Wikipedia isn't a source; never was, never will be. It is an information aggregator, meaning that the point of the website is to gather information in a central. easily accessible location for the sake of convenience.
The people who contribute to the site are the ones who have access to the source materials (or rather, are supposed to) e.g. books, newspapers, scientific study papers, video & audio sources, photographs, diaries, etc etc. Primary sources of information will always trump everything else, especially aggregation sites.
The reason Wikipedia got the reputation it has is because college and high school students couldn't be arsed to do their own research and used Wikipedia as a low-quality substitute. The important links in a Wiki page are the citations: if the citations aren't quality source material, neither is the article.