The serial seems to show karna as hero and Arjuna as villain. Why this caste system is brought in here?? It does not have anything to do with oonch-neech. It was just different professions with each one as important as the other.
Just to increase the TRP the writers twist the facts of a great epic that teaches the way of living. Is this the way to live??? Are you teaching to give utmost importance to ego??? For the sake of friendship can you give up Dharma???