I don’t believe that individual people are objective. They bring their biases, conscious and unconscious, to pretty much everything they think about. If you dig into Wikipedia’s underpinnings, you can see those biases clashing as people edit and counter-edit each other.
But I do believe there is such a thing as truth, and that argument among all of us half-blind people moves us closer to it. Wikipedia as a whole is way closer to the whole truth than any one contributor to Wikipedia can be. And you’d like to think that Wikipedia, and even the entire internet, will move closer and closer to the truth. Maybe, long after even the electronic edition of Britannica is gone, the idea of Britannica can remain for us what it once was for me–a kind of Platonic ideal that we aspire to evolve toward even if we can never reach it, something that has a kind of reality even if we can never touch it.