This is what entrance exams were made to do by design. This isn’t a bug.
They are entirely designed to lock out students who can’t afford to pay the absurd costs of test prep, while pushing through those students who’s parents could afford tutors that cost severs thousand dollars a month.
A prime example is the LSAT exam in the US for law school.
The exam is graded on a scale of 120-180, with a score above 175 being virtually unheard of due to the difficulty of the exam. Before, a good performance in undergrad combined with a score of at least 150-160 could guarantee you a spot in an top law school. However nowadays, scores have entered a horrific cycle of inflation that to get into any middling or top law school, a score in the high 170s is required, which is absurd. Anything below that is essentially a failure. A score that only 15-20 years ago would be the mark of a savant, has been relegated to only those who have the money to pay for test prep, and the privilege of the luxury of stress free time to study.
Of course; this works to the advantage of the top law schools as they get to isolate the wealthiest for admission, but how many have been locked out of a good law education due to their life circumstances?
Further, what kind of lawyers will those wealthy students become? Statistically they will become corporate “big law” lawyers with extremely high salaries. Leading to mass shortages in public defenders, workers rights workers, and civil rights lawyers. Essentially those who protect the poorest and most oppressed members of society, while simultaneously threatening capital.