meaning they got the good grades from working their ass of to get it and fully understand it.. put in some SERIOUS time during school.. insane dedication.. but it paid off.. they work with the same work ethic and they kick ass
I've witnessed some people I know truly succeed PURELY based on HARD HARD work.. they didn't automatically get things, or get good grades.. but they worked their asses off.. and now, they are exec levels at the major corporations of this country
smart people usually hang with smart people... they could be 20 IQ points higher, that is quite a bit, doesn't mean you aren't in a more elite category than the average person your age
then you are good to go, just know you have to get your shit together, and put the proper/honest effort, and people can achieve anything.. regardless of any tests