With our team of pol­i­cy­mak­ers, aca­d­e­mics, for­mer mil­i­tary, of play­wrights, we explore why peo­ple refuse polit­i­cal com­pro­mise, go to war, attempt rev­o­lu­tion, or resort to ter­ror­ism, focus­ing on what Darwin called those virtues highly‐esteemed and even sacred,” that give immense advan­tage to any group with devot­ed actors inspired to sac­ri­fice for them.