Owning stock in Disney would give me a share in the profits. I could also possibly vote when Disney lets shareholders do so. As a worker for Disney, I could receive money for selling my time and a portion of the profits via shares. I would thereby be a worker/owner. I would reduce that to worker, but lets entertain worker/owner as a class.
However as a worker/owner, I would not be able to make decisions that change cost. I would not own anything other than the share which is placing faith in the company. I would still try to do as little work as possible for as much compensation as possible since I am still primarily a worker.
Maybe my passive income stream will someday overcome the cost associated with meeting my material needs. I could then graduate from worker/owner to owner.
Owners, workers and profit sharing exist under capitalism. Profit sharing is not the same as being an owner due to decision making power and ownership of capital i.e. private property. Workers can benefit from profit sharing, but are excluded from the owners black box for determining profits. The worker keeps their job by producing more value than their labor cost.
I am looking for a system where workers get to make decisions regarding their labor and own the tools by which their labor produces value.