That's a really false characterization. Wealthy conservative owners are no reason to distrust a news source (for example, the Tribune company publishes several high-quality conservative dailies). Rather, they are an explanation of why you find so much false content in these sites.As so often happens every time the conservative media sources are discredited and lefties point to the "rich conservative owner" all the while the rich liberal owners and their agenda are seen as the true source of information.
Also,. I see very few posters in here touting the liberal sites (Huffing Post, Democratic Underground, MSNBC) as an authoritative source.
There are dozens of liberal posters here willing to discuss nuance.There is far more nuance to each of these issues than you are willing to consider