I'm not opposed to this. But I think our corporations should be regulated by the government, not by shareholder oversight.
After all, shareholders are essentially powerless in the current system. Each individual shareholder's power is far too dilute, many people owning shares through pension funds don't even know they're shareholders, the minority shareholders have no way to contact each other to coordinate, and it's completely normal for the likes of Apple to spend billions on secret projects and the shareholders to only find out after the fact.
Hell, Google even has three classes of shares - one with no voting rights, one with 1x voting rights, and a special class with 10x voting rights for Larry and Sergei ensuring they have a majority of the votes even without majority ownership.
If we think shareholders are supposed to be providing oversight to companies, they need vastly more power to do so.