This is important and rarely discussed. I'd add that there's a larger pattern tying these cases together, one that also speaks to some of the Encyclical's broader points: whether it's the Politburo of the USSR, the Court of Directors of the East India Company, or the Board of the United Fruit Company, historical atrocities in any age, society, or economic system almost always occur in the context of enormous power concentrated in few hands. It isn't capitalism or communism but the absence of accountability.