Thing is that currently content could be (thus is) irrelevant, because no matter the content self-voting (selling votes is pretty equivalent of self-voting) can bring easy profits without need to chose curation.
Sure, those who pay for votes most likely will earn less, but those who can produce high quality, original content will have a better chance to be noticed by users who are willing to curate such content, as the incentives will increase (now it's too easy to just sell votes and get better profits than bother with curation)