It goes beyond gaming the system though. I listened to her message, although could only get through about 4 1/2 minutes of the boredom. As I listened, I reflected upon how grateful I am that our valedictory and salutatory speeches tend to be 5 minutes or less.
I'm going to overstate it, and there's a fault in doing that, but for the most part, here are the cliffnotes of her speech:
Over the years, I've known a few people who that description fits perfectly - book smart (even valedictorian), but no common sense. They don't see school as providing opportunities for learning, but rather a place to provide a place where high grades are the only achievement.
And, if you look at how GPAs are calculated for students at many high schools, things like AP classes are weighted differently - a 100 average in an AP course is worth a lot more than a 100 in pottery, art, chorus, band, etc. A lot of the top students at some schools avoid such electives, because they don't want a 100 in an elective course to pull down their GPA. So, when she stated in the video that she didn't like the subjects that she found to be nothing more than a chore, she's probably referring to a very narrow set of subjects: math, history, science, language. And, it's a shame that her teachers didn't (apparently) do a lot to integrate these subjects together in a way that would have made learning more meaningful.