Original ResearchPublished 25 February 2026How personal significance, collective narcissism, and willingness to sacrifice shape extreme personalitiesPedro Altungy · Ashley Navarro-McCarthy · Rocío Lana-Blond · Sara Liébana · Luis Carlos Jaume · Ewa Szumowska · Erica Molinario · Ángel Gómez · Arie W. KruglanskiFrontiers in Social Psychologydoi 10.3389/frsps.2026.1714455