So you're arguing against all democracy? If there are regular votes to keep/replace this director if they are not performing to the benefit of the workers I don't see an issue. Sure they're will be some bad choices sometimes but the existence of the position in itself will exert some pressure to consider worker issues that the company didn't have to think about before.
Treating low paid workers as interchangeable, disposable resources needs to change and this is a very small step towards giving them a little more control of their situation. It's not perfect but it's better.