I think this so true and important to remember. I will say while understanding is probably the most important thing, without those A’s in the first place, you won’t be able to get to a position(or less likely; probably a lie our parents tell us)
While that understanding of the world and things around you is important; without those high marks in high school and college, you’re not likely to distinguish yourself or impress your perspective employers or graduate admissions officer. We were told high marks mean high achievement and unfortunately too many of us fall into that trap. I honestly haven’t seen a particularly high correlation to high achievement and high marks. I think most of the people I’ve hired over the years have been the B students who seem motivate and bright but not obsessed with success. They tend to be team players and not divas or stars.