At the risk of repeating what has already been said, indeed, context matters with this stuff. The cat meme that goes viral on Twitter might not go down to well elsewhere. It's true that judging the value of content is somewhat subjective, like judging the value of artwork. If however, one is running a media business (of one sort or another), one can take a more objective look at trying to match creators with the right audience, and further, matching advertisers with the right creator. Wealth is only one measure of success, but it's not insignificant.