Grey cubicles are not the best places for stimulating thinking. They want you to think outside it, but invariably put you in it. (And I hate that cliché). You get into a corporate haze. You can lose sight of what is real. The rhetoric is so thick, it turns into a fog.
If you want to succeed in a corporation, make sure you follow their rules. Then you will go far. Don’t scare them with radical improvements. However, Incremental Improvements are OK.
An office environment isn’t all bad. Maybe you like it, that’s fine. All large orgnaisations become hierarchical. This hasn’t changed since the Roman Empire. If you have start up ambitions, recognise the haze and how to see through it.