I completely agree, and I believe Steemit has exactly the potential you describe. The state does more than simply create a funding mechanism, and conversations and means of executing agreements based on the decisions of the people discussing, are necessary, and Steemit can do both.
That is why securing Steemit from Sybil attacks is so important to me. As long as Steemit can be easily captured by TPTB, it is not capable of creating an alternative to extant government.
Big accounts, like @freedom, @dan, etc..., simply cannot compete with REAL money, which is not measured in $MMs, but $TTs. There are people, or cabals, that would not spend more than petty cash to buy every Steem in existence.
Since those people are the threat we need to counter, we can only do that by preventing their money from controlling our weapon. Since that revolution is inevitable - we will be freed from coercion eventually - a weapon capable of defeating TPTB will effect that revolution.
If it isn't Steemit, it will be something like Steemit, but secure against Sybil attacks.