you know higher caste will obvioulsy get corrupted because they have a sense of "power" and you know the caste system wasn't made to divide the people. Anyone can be a brahman, through meditation etc. And if you are born a shudra, doesnt mean you stay a shudra. Look at vishwamitra for example, he was a king a chettri, through meditation and all that stuff, he became brahmin. AND about preist being chors heres'a hint, if you are doing a havan or a grand puja and need a brahmin preist, please don't chose the fat ones :). Because in real vedic dharma, a preist is not supposed to ask for money or charge for ceremony. He is only supposed to get "guru dakshina" and its not money, its like food and clothing.