From 1959 until his death, only Japan had higher economic growth than Spain....like Pinochet, Franco eventually listened to the free market economists, and instituted reforms.
I have family that left in the early 1960s for financial reasons; it was difficult to make a living in the countryside. They supported his ideas, and do to this day, but farm life was tough (as it was in many countries - the parcels of land often shrink as each generation further divides up the family lands). They came from large families, and left their land in the hands of a few family members (who could prosper with them when combined with their own). They still own property there.
Franco knew the war had origins in the large disparity between the upper and lower class (the working class of the cities supported the socialists, anarchists, and communists, though the countryside supported the generals), and he ensured that there was more opportunity. He also was happy to let those who disagreed with him simply leave.