School and college usually teach students a lot of lies that are aimed at helping students in getting by in the present moment. Many of these lies do not have any practical application, nor a bit of truth to it. The biggest lie that school and college tells its students is that those who tend to get better marks, happen to be more successful in real life as compared to those who do not get good grades.
This is not true at all, and we tend to have real life example. Nevertheless, good grades do always help in various other ways.