There has been a lot of talks of games with disappointing content with opinions like "I worked on X game and I feel bad about it" or " you worked on Y game why didn't you speak up" just so you have some context this is what it's like to work on an AAA game.

Rank and file: This is most of the team.(like 90%?) You have close to 0 say on anything. you're not in any of the important meetings.

Lead: You manage a small team. You can voice opinions directly impact your team but still have close to 0 decision powers. Still not invited to important meetings

Second-line managers: Manage a sizeable team. You're in charge of delivery so have more say on how things are done but still, pretty much 0 say in what gets done. Invited to some fo the important meetings to present information/ to see what's going on but not to have opinions.

Director, Producer: In most of the important meetings have the final say in the area they own. (Unless HQ or Creative Director says otherwise) even on a 500+ team probably less than 20 people at this level.

The inner-circle: The Creative director and few people they trust. These people pretty much decide what goes in the game. Anywhere between 3 to 5 people that work on the project. If this group wants to put something problematic not much anyone can do to stop them.

As you can see on a project with 500 people about 3 to 5 people have a direct say on what is in the game and only about 20 people that can reasonably bring up issues. Everyone else is mostly along for the ride.

Oh yeah and there's also a bonus level of people in HQ that just tell you to do stuff and you just have to do it.