There are many competitors in ordinary business affairs, and the karma-kanda chapters of the Vedas sometimes cause competition and envy amongst karmis. A karmi must be envious because he wishes to enjoy material pleasures to their fullest extent. That is the material disease. Consequently there is always competition amongst karmis, either in ordinary business affairs or in the performance of yajna. Lord Brahmas purpose was to end the competition between Lord Indra and Maharaja Prthu. Because Maharaja Prthu was a great devotee and incarnation of God, he was requested to stop the sacrifices so that Indra might not further introduce irreligious systems, which are always followed by criminal-minded people.