Steemit can be a realizable social utopia by reorganizing in smaller communities with the same goals, but only in the condition that people who lead the guilds or smaller groups are true activists that embrace the idea of sharing the same needs and solutions for everybody

Difficult to expect everybody to fulfil that condition..

The only way to maintain a network's goals is really to have a self-sustaining system. For example, Google actually relies on their X team's projections (for moonshots) to acquire funding, just so they'll maintain whatever they're doing without special interests influencing their core vision.