School is conveyor belt. Everyone can be educated, everyone can learn what they teach you in school. Depending on where you went, you can all be high quality or you can all be terrible. You can pretend to compete, but in the end, nobody is really stopping you from anything.
Work, and by that I mean high-achievement work that is the type of thing that the top kids end up applying for, is a pyramid. You can have the cream of the crop starting a new analyst class, every single one of them a top 1% achiever in education. Most of them by far (like really far) will not be MD or CEO. Whether you are the guy who makes it rarely depends on anything you have control over.
I need to tell people this, because if you go to a top uni, you've run into a lot of people who were studious, ambitious kids. They think "hey, if I put more effort in, I get rewarded". Which is true for these non-rivalrous things like science exams.
Then they graduate, and if you were an ambitious kid there's a fair chance you gravitate towards certain careers. And in those careers, the game is different. If you think being a good kid will help you, you will be frustrated. Other young professionals have got the same plan, to stay up until the early hours working. Or spending time playing the politics game. IMO you can't really win at the pyramid game, even if you make it to the top there's a lot of sacrifice and a lot of nervousness about whether you get there and how long you can stay.