Why are top MBA colleges not able to control backdoor entry admissions?

It is because they profit highly from this or are controlled by powerful people. Many of the local private MBA colleges are always looking for making extra bucks and what is better than giving backdoor admissions to students with rich parents. Such colleges profit highly from this and don't want to

Backdoor entries are controlled by various factors mostly external factors like corporate pressure and sometimes political pressure. This kind of backdoor entries are mostly done by agents and brokers who take double the seat for taking admission into reputed institutes. But the institutes which are