Not really - because the pools are collections of individual miners that each can switch which pool they participate in on a whim. There aren't some much "owner

Not really - because the pools are collections of individual miners that each can switch which pool they participate in on a whim. There aren't some much "owners" as facilitators. In practice we've already seen this, when several pools have gotten close to the 50% mark, individual minors have switched pools, or even split their participation across multiple pools.