The 42-year-old web guru, in an effort to show Wikipedia's impact thus far, referenced a recent trip to a slum in India where he "met this young man on the street who told me that he had used Wikipedia to pass his 11th grade exams."
"Wow, that's really cool, right? We've had some impact, even in such a place where I'm talking to this guy, and there's mud streets, and cows, and it's really quite a different environment from London."
Wales's popular online encyclopedia allows anyone with an Internet connection to make entries and edit content.
"In video, right now, we're still back in many ways in the Web 1.0 era," he said, referring to the age before so-called Web 2.0, the peer-sharing model of the Internet of which Wikipedia is almost the definitive example.
Speaking on the sidelines of an awards ceremony in London, Wales said: "We're really just at the beginning, still, of collaborative efforts."