ILLUSTRATOR NOVICK Dr. Hubert Long , 40, bachelor and assistant professor of political science at Mentioch University, thrust his rugged, unlovely face forward, sticking out his neck literally and figuratively. "The Humanist Party," he shouted at the 800 odd students in the lecture hall, "is not a political party at all. It's an oligarchy, so firmly established in Washington that our electoral form of government is an empty ritual, a ridiculous myth. Our elections are rigged to perpetuate a sele