What is the significance and symbolism of Sandro's "Flamethrowers" in the novel, The Flamethrowers?

The Flamethrowers of Sandro’s Arditi battalion dolls depicting the Italian army during World War One, are symbolic of the novel’s politics as a whole. Soldiers like Valera had the most advanced and efficient weaponry, and the ability to quickly extract themselves from battle by riding motorbikes, which was symbolic of Valera’s wealth and privilege in life which allowed him to commit crimes against other human beings and be rewarded with even greater wealth. In contrast, The Flamethrowers had the crudest weapons available to them and suffered the greatest consequences when they were caught, like the Red Brigade in Rome who were punished for their acts of murder against industrialists in a way Valera and his associates were never punished for their acts of murder in the Amazon rainforest.