This is probably just because of my race, age, and location, but a large amount of Sanders supporters I knew were urbanite minority women who were as invested in the culture war stuff as they were in economic justice. These things aren't as clearly delineated as they might seem. Also, yeah, idk if the divisions between the two 'wings' is as large in real life as it is on Twitter.
Apparently, they may actually be the opposite; according to a study posted somewhere in US General Discussion, Sanders' supporters were economically to the right of Hillary's and vice versa on social issues. I suspect this is owing to racial breakdown, and that things would look more "correct" (i.e. "SJW neoliberals" v. "populists") among a sample of only white voters.