Earlier quoted context omitted.
Because management (or rather, shareholders) pay workers to do work, and not the other way around. Abstractly, workers telling shareholders how to run the company (out of the scope of what shareholders hired them for) would be similar to shareholders telling workers how to spend their paycheck.
I don't see why it's like that at all, but you realise that this is not how it's always been, even in America, and certainly not elsewhere? What seems "logical" to you is merely a current snapshot of a social construct that's been built built over decades of political activism by shareholders.
Then Milton Friedman showed up and said "Hey, you just acceded to your walls being painted pink but, by the rules, you didn't have to do that!" If getting this notion across is activism, then I guess I'd stop thinking of activism as a dirty word. I thought it was more like education on a common-sense notion.
Come think of it, an alternative structure you seem to be advocating is also a solved problem in this scheme - it's called a co-op, and there are many successful ones around, from farms to clothing stores. Go found an internet search coop, and as a co-owner you'd be able to decide how it should be run.