Now fade back to the ones that didn't leave with a hint that the 'birth defects attributed to incest' were actually caused by environmental damage instead.
Actually Jed wouldn't have seen a nickel, in reality. The oil company would have screwed him out of his mineral rights somehow and Jed and Granny would have been evicted to live out their lives on meagre social security in a tenement, somewhere ... no seement pond, no brewing rheumatism medicine out back, no billyard room ...