The crossword solution for the term 'Atlas Shrugged Theme' is 'EGOISM', which is a six letter word. EGOISM is a philosophical concept that states that individuals should act in their own self-interest and prioritize their own needs and desires over those of others. This concept is a major theme in Ayn Rand's novel Atlas Shrugged, which follows the story of a group of people who embrace EGOISM and reject altruism.