Isn’t that kind of why they’re being used so widely in the first place, and why you’re able to get credit for doing AP Calculus BC, but you probably won’t for the Calculus 2 taught at your high school, with a curriculum tailored to the specific school? Because there’s a clearly stated curriculum that schools across the country have to follow in order to get credit, getting a 5 on the exam has value, for credit, and for the purpose of admissions (This is more about courses like Calculus and foreign language, not the “fluff” ones like Psychology or human geography).