As an example, look at Semco, a company in Brazil that restructured itself, and a lot of what they do is a model of 'industrial democracy' very similar to Anarcho-Syndicalist ideas, or communist ideas about worker's self management of factories. The interesting fact however is that they stumbled on this by accident (convergent evolution basically).
That model took the value of the company from $4 million to $212 million in revenue.
https://en.wikipedia.org/wiki/Ricardo_SemlerThere's a book called Maverick written by Ricardo Semler about how he restructured the company, it's a good read to understand how this kind of thing would look in practice. Read through this:
https://en.wikipedia.org/wiki/Maverick_(book)
and you might scoff that this list of ideas "would never work", then realize they're not just ideas, they're exactly how a large and successful company operates.
Point being, this isn't just theory. These ideas work, and they work a lot better than the top-down approach. The reason you don't see more of this is pure greed. Top-heavy companies are actually really inefficient, except a "leech" class has established themselves as being in control and they spin fairy tales about how if you give the worker's too much say in management then the sky will fall. That's pure fiction designed to cement that small managerial leech class as being in control / siphoning off a disproportionate amount of the money. We have examples where they largely eliminated the managerial class, and things actually tend to get more efficient (the turn-around on processing orders went from 6 weeks to a few days in Semco when they flattened all the layers of management down to just
one layer of worker-elected leaders).