The real extractable money is in the middle class, whose wealth passes through government-controlled bank accounts. Of course, when the time comes the lefties will be all "well actually anyone making above 80k is superrich - have you seen the homeless lately? CYP!"
>They are advocating basic healthcare and education, not exactly consumer services.
You could either give them the money directly, in which case it'll go to consumer services. Or you can subsidize their healthcare, in which case they will use the money they save on consumer services. The difference is that the government has a long track record of inefficiency and waste when it comes to subsidies.