In my view, relative grade system creates difference between you and me. Such as "Someone have got 90% so he/she is A graded student and as some one got 40% marks so he or she is a C graded student!" etc. So if the system fails or the assumption fails, then there will be no differences! And if there will be no difference then "No one will not come to know, someone's bad part or good part too" as "Grade Creates Divides!"
Inspired By 3 idiots!