What you describe as “corporate bullshit” and “stock markets” are just a symptom of later stages of Capitalism. You cannot maintain the small stages forever, eventually they will coalesce into large firms and syndicates. You can’t simply bust up monopoly either, manufacturing gets so complex that it needs to be done by large companies to handle the scale.

This process doesn’t stop, though, it becomes better and more efficient to publicly own and plan these large firms as they get larger and larger. This is why Socialism is a necessity regardless.