PRC political ideology by Province

[Zuza]

Why these 2 isolated provinces in Central China, Shanxi and Hubei, are so "right-wing" despite their GDP per capita and HDI aren't much different from adjacent regions? Hubei is where Wuhan, one of the largest Chinese cities, is placed, but I doubt it affected study results significantly.

[Zuza]

Thanks! It's strange that Shanxi is now one of the poorest provinces, despite it's mercantile traditions.