He's a petty man quickly prone to envy, jealousy, and hatred, but at the same time, has a charm that makes it impossible to leave his side. Despite the trigger for the Kurukshetra War being the consequences of his many evil and unrespectable actions, he only fought in the war as the face of the Karauva faction because he had enough people taking his side for it. If he was just a small-time ne'er-do-well, he wouldn't have this many people following him. As a Kuru royal, it's conceivable that he has a base level of charm and an admirable human side. That said, people who aren't fully affected by it aren't affected at all.