This post is getting a bit dated, but I think the information still stands.https://peakd.com/utopian-io/@paulag/the-impact-of-unused-steempower-on-the-rewards-pool-blockchain-business-intelligence
When a whale votes, everybody else's vote value goes down.
More big slices of the pie, less left over for the small ones.
Although, it does work the opposite direction, too.
The more small accounts voting the less the big ones get.
It is a tug of war, or dare I say it?
A crab bucket.