Amen to this. (I'm glad I'm retired from college teaching.)
The corrupt undergraduate admissions process at most schools today can flourish because the higher branches of the American academic tree are so good. But the lower branches are rotten with grade inflation and social promotion. The move away from an emphasis on genuine academic achievement and meritocratic promotion has done a disservice to the least well-off while offering more opportunities for the rich and connected to buy the trappings of success for their offspring.