There are poor people in every caste / religion. Just because you do not know does not mean they do not exist.
My point was specifically about reaching the people you mention through the reservation. Unfortunately, what we see is that those who have reaped its benefits are continuing to exploit it, while others (those you mention) are still struggling. The 'backward' political class continues to exploit them while resisting the definition of the "CREAMY" layer. So, what should be done to help those who really need to be helped by these policies?