Human societies tend to structure themselves as group-based social hierarchies such that some groups enjoy greater access to fitness-relevant resources such as prestige, wealth, social status, healthcare, food, homes, mates, and so on. Social Dominance Theory (SDT, Sidanius & Pratto, 1999) asks the questions why and how group-based hierarchies are continuously reproduced, at least among surplus-producing societies. The theoretical framework spans macro-structural, institutional, ideological, social role, individual, and behavioural genetic levels of analysis to address this question and postulates that humans have a predisposition to navigate group-based social structures (Kleppestø et al., 2019; Kunst, Fischer, Sidanius, & Thomsen, 2017; Pratto, Sidanius, & Levin, 2006; Sidanius, Cotterill, Sheehy-Skeffington, Kteily, & Carvacho, 2016; Sidanius & Pratto, 1999).