Disagree, that is the biggest lie about our system. You cannot pass 11th/12th by just solely cramming. It is possible to an extent till 10th grade but not after that. For example 70 students in my school failed 11th grade last year because cramming was all that they could do, you cannot get by like that after a certain stage.
And I just don't get all the hate people have for all the toppers/IITians, everyone thinks they just learn stuff up by rote, which is by all means necessary, but there is a high amount of logical thinking ability required as well. People just look for excuses to bring others down.