Nowdays, nearly anyone - either with an IQ above room temperature, or some creative trait that people like - can aspire to be an "intellectual" just by starting a blog; most people who are in a "position" like that would be very vulnerable, say, in China, where political discourse both on the left and on the right is strictly controlled.

(Yes, I should admit that I've more or less projected the example above from today's realities; it's more plausible for lower-middle-class people to launch some kind of a community-changing venture now, due to new technology and all that.)