"Where a man does his best with only moderate powers, he will have the advantage over negligent superiority." - Jane Austen's Emma, in the eponymous novel.
The concept of negligent superiority brilliantly captures an all too common phenomenon to be seen among the lavishly gifted, talented, and connected. But as the twentieth century philosopher Wittgenstein once opined, to rest on one's laurels is as dangerous as falling asleep in the snow. Those frozen in their sense of superiority do not flow on to further success.
But modest endowments put to great use can accomplish much. In fact, it's the negligence of superiority that allows for many others with lesser gifts to prevail by doing their best. My wife's parents told her when she was young that the grades she brought home didn't matter nearly as much as the fact that she did her best. It's really both a reassuring and a daunting concept, but it does carry promises and hope. So, in all that you do, do your best.