I almost entirely agree however I do think you get more out of your education if you are at least trying to get a higher grade. I am currently a C person because I choose to use my time on all the other tasks and interests that I have, especially the ones that make the money necessary to get through education ! It’s good to be a jack of all trades and have friends I can call on or delegate things to but I think you have to really know your stuff in order to earn respect from customers, colleagues and more importantly, self-respect.