I think it's a safe assumption that the whales/dolphins will have a large influence in what gets funded. While in theory a lot of smaller voters could make a difference, my guess is that many simply won't vote.
But it could definitely change the current situation, in which decisions about what work gets done is pretty much left up to Steemit Inc. And where pretty much all the blockchain work is done by Steemit Inc.
RE: Proposing A Worker Proposal System For Steem