As I always said to some people who call me lucky, if you do something long enough, you eventually get good at it, sooner or later. I have a formula, where x+a = r, where x is work 1-10 and genius is a 1 to 10. 
A hard working 8 who has average inteligence 5 is 40, while a lazy 2 genius 9 is 18. As you see, hard work always trumps lazy geniuses, so sometimes just by being average and hard working you can achieve a lot. 

Am I rambling again? Yes. I do.