It's controlled in the sense that Democrats tout themselves as being against ruling class interests in various ways but then, of course, do not actually taje action to do so once elected. A perfect example is Obamacare. Obama ran on a single-payer healthcare promise but did the Dem thing of saying it required winning Congress as well (they assume they won't get the votes and will therefore have that excuse). Only, they did win Congress and with enough votes to shove the whole thing through withiut changing the precious Senate rules, so they had no excuse whatsoever. So what did they do? They found a whipping boy in Joe Lieberman, pretended discipline was impossible, and gladly allowed the ACA to become a slightly subsidized insurance mandate, guaranteeing subscribers for private insurance.