Offtopic but, the funny part about that statement is that the only place the socialist ever got the poor's support was in China during its civil war and then only because Mao was directly giving (bribing) them with land in exchange for their support. Everywhere else the main population of socialists were government bureaucrats. Ironically, all authoritarian ideologies (fascism too) happen this way, with low level government officials being the most zealous and the core supporters. The whole "revolution of the people" narrative is just propaganda, like your quote.