Sanders is not a snake oil salesmen:
http://www.thenation.com/article/bernie-sanders-will-make-the-economy-great-again/
His policies are just outside of the political mainstream of the U.S. - or at least they have been until now.
Also, both California and New York are moving towards statewide 15 dollar minimum wages. Both plans will phase the increases in over a period of 6-10 year across the states. We'll see if an economic hellscape results.
By the same token, Hillary Clinton definitely isn't the monster she is portrayed as in some places. She is a liberal/progressive by any definition of those terms in the U.S., and she certainly personally cares about issues related to discrimination and woman's rights.
Clinton's problem is that she is running of the establishment head of a party that doesn't have the social and financial base necessary to enact the structural changes in the U.S. economy necessary to alleviate the economic concerns of the U.S. electorate. As a result, she is forced to run a defensive campaign focused on scaring voters about Republicans (who would make those problems worse) and taking strategic positions to appease her base.
Sanders is trying to remedy those problems, but it looks like it will be about 10-20 years before the social base will exist for the type of Democratic Party he is trying to create. Also, it remains to be seen whether the manpower and financial resources mobilized by his campaign will translate into a movement capable of electing candidates making lasting political changes. Right now, it seems like all he is doing is highlighting contradictions with the Democrats.