“The poor will become masters of the rich. “
Wrong. The poor temporarily become masters of the middle class and that portion of the rich who are not in the governing class (primarily small businessmen). No way the governing class (which is mostly, not completely, the rich) gives up its power. The governing class continues to be rich and to be masters of everyone, including the poor. The composition of the ruling class changes some; but not as much as you might think. Eventually, the middle class no longer exists after some period of “oppressed class” whooppee-stuff has died out. Then, there is only the governing class and the poor.