I think we are both saying the same thing from a different starting point.
Let me establish that by asking, how do we get to that massive market cap? If we look at how the dollar got there, it was through the projects that the US Government initiated to create a need (such as the bretton woods system).
For that market cap to exist, there needs to be products and services that people speculate will succeed. Involuntary injection of money into the blockchain will only yield with people taking advantage of free money, because that is essentially what STEEM does. It creates a rewards pool, and how that rewards pool is dished out, is really up to the stake holders.
In the interest of self preservation, people will often reward themselves before they reward others. So to change that, we will need to create incentives for them to use the coins in different ways. That can only come with establishing products and services based on the coin.
That's the path to a large market cap. Otherwise, how can we get there?
When I mean "extract" I mean if person A injects $X and powers up on the STEEM network. because of supply and demand, the price of steem might go up in that process. But how do we maintain, consistently that value?
One answer is to have such a high valuation of steem, that $X has no real effect. But before we get there, people will constantly try to cash out their portion. The solution to this is again the large market cap. My concern is how we get there.