By this logic you could get promoted if you worked six day work weeks.
There's a reason 996 culture is seeping into American startups. Whether it actually makes them more productive in the market remains to be seen.
And this is true… employees who work and produce more, better things often get promoted. Spending more time doing things leads to producing more and better things
Have you not seen people who work longer and harder get more promotions? That has been my experience.