When I was studying in my BE. I had son of commissioner and PAC commandant as my classmate. They were both from SC/ST.
One of them has not appeared in one of the engineering entrance paper, out of four, and got zero in the other. And he got the same seat for which I worked for two complete year. I can remember he used to say he will appear in IAS and will get selection for sure as there is only few people of his rare ST caste will apply for it.
These people were already affluent enough. Do they need reservation?
Son of these politicians either goes foreign for studies or take minimal qualified education for being a politician, so they are not anyway bother where our education system goes. They can not feel the heat in the matter. Let the sons and daughters face the entrance exam, then they will feel our pain.