Well, let me give you an example, where to use "way to wreck the curve"
I think we all have this experience:
After a test, when everybody in the class didn't get a good score, so teacher said "I would add xx points to everybody's score to move the curve up. OK, this is what "the curve" means in "way to wreck the curve".
However, one of your genius or study-hard classmates scored WAY BETTER than anybody else. Therefore, if teach wants to add xx points to everybody's score, then this genius' score will be bumped out of full score, hence your teacher said because of him (or her), I cannot move the curve. Then, you can say to this genius classmate "way to wreck the curve".
Therefore, "way to wreck the curve" means
"you have destroyed the curve, so the curve cannot be move parallel up or down, left or right"
"you have screwed up everybody on the curve"
Hopefully, this will give you an idea what it means.