No, there's no single owner, however in most companies there's a small class of people who own a lot of the stock and have a huge amount of power, while most shareholders have very little stock (esp. if it's owned as part of a mutual fund) and no real power.

So yeah, if you have enough shares that the board really wants to listen to you, complain away. For most people though, that's a waste of time. Just sell your shares and move on. The board doesn't give a rat's ass about some people who just own shares through their retirement funds, only what really large investors want, as those people have the power to affect their position on the board.