Actually I don’t think everybody wants that. The vibe on most forums, including this one is often f’em as long as I get mine.
As for the candidates, most are in for their egos, Sanders and Trump, and sadly some of the the Cruzesque righties actually believe the stuff they say as opposed to saying what they think gets then elected. Trump still is in it for his ego, it’s just so big he thinks he’s the only one that can fix it. Cruz and the rest ego too and loco IMHO. Sanders less so ego, or at least comes off that way. Bush, Clinton just mouthing what they think plays IMHO.
Indexing wages to cost of living for the area is commonplace in larger company with skilled workforce. Doing the same with minimum wage has the dual effect of uplifting neighboring areas and mitigating the disparity. The importing of labor from impoverished areas perpetuates the cycle. Is our society better off with $1 McDonald hamburgers in Irivine and 99 cents a pound grapes or slightly more expensive items and workers that make them not so impoverished?