The subject matter of a course is like the dogma of a religion. Students are indoctrinated with propaganda disguised as factual information. From the start of school in the morning they are made to memorize mass amounts of data which they forget by the end of the day. The typical curriculum is a structured lesson plan to help facilitate the process of brainwashing students in an orderly fashion. It is concocted by nameless educational authorities who dictate mandatory adherence to it by both students and teachers.
The pedagogy must be approved by the government to ensure that their scandals and conspiracies remain secret. It's all a standardized narrative that must be accepted without question by school boards, teachers, and students. It's like the terms and conditions of a contract, even if they know it's not true students must agree by passing exams, which is like signing a contract. It's not about learning anything it's about submitting to a dictator.
By the time they find out the curriculum was a lie it's too late. No one can rock the boat and no changes are allowed because the status quo must be maintained at all cost. The only good thing about a consistent curriculum is that students can develop effective cheating strategies based on the ease provided by such a predictable pedagogy.