Personally I am loving the idea of empowering the dead! It seems like a very barrow-wightish thing to do, and perhaps it could evolve into a religion of sorts.
If we chose to tie the vote, I doubt that we would risk loosing data for us to analyze at a later stage. After all there is more to pack-behavior and whatnot than voting patterns.
Sorry for the shoret cameo, I will return again later.