Real micromanagement is the ability to dive in and solve unsolvable bugs or issues, rally the team until the minutest detail of an issue has been hashed out or remove any micro obstacle. Once a manager shows skin in the game and proves themselves, they often win the minds and hearts of all engineers, who then feel inspired to get into micro details themselves.
Now like a sleight of hand, you have scaled accountability and integrity in your team.
So micromanagement done in the right situation and in the spirit of moving things forward is highly beneficial. In most cases, however micromanagement devolves into this micro verification tool that every mediocre manager uses to justify their existence.