I mean he can try and should of course. But they might be more concerned with their own money fears than anything he has to say. Like, "I want to help the poor" , okay good now here's this new M4A plan and a chart where you might pay more in taxes (and less in premiums, out of pocket, etc), "Now hold on a second. I didn't want to help that much!", okay well what about a living wage $15 an hour? "But my hamburger might go up 25 cents? pass." Well then what's your idea of help the poor? "I was thinking more like giving motivating speeches about how they should work harder." but those speeches will cost tax payer money "oh never mind then".
In other words, he shouldn't also bend over backwards to them and I doubt he will. His speech seems to speak more for people who are disenfranchised in some way more than for people who probably won't be much worse off (or see themselves as worse off) with a Bloomberg or Trump presidency.