@pumpkin has a big influence but he is by far not controlling TOP 20. We're talking 70M stake (Steemit Inc) vs 10M stake (freedom). Some witnesses (i.e. @aggroed) are in the TOP20 without any huge stakeholders, such as the above or someone like @blocktrades.

You also have to take into account that you are not going to be able to convince everyone to vote for your idea which, by the way, is a good idea in theory, but it is a fact there are over one million members who are no longer even active I would think some of them do have some of that 90m SP you talk about. I think really that this is out of our hands.
Also humans tend to follow the big guy in this case the huge guy, so I think many will just go along with him.

Good points. We'll see how far we can get this thing going, but so far we've gained roughly 2% in votes. In the end, this is more a public education initiative than anything.