If I got you right, voting based on individuality could make some big boys power down, except there is a balancing measure to assure their power/influence is not much altered. We must remember that those with higher stakes have actually invested much in time, effort and money in the development of Steemit.
They deserve some sort of respect to reflect their stakes, I believe.
When the new Steemian comes in, his contributions will also grow his stakes. I think the Steemian's reputation, as evaluated of his/her useful content and consistency, should be a determinant factor in determining his/her voting power.