Left-wing politics supports social equality and egalitarianism, often in opposition to social hierarchy and social inequality. It typically involves a concern for those in society whom its adherents perceive as disadvantaged relative to others (prioritarianism), as well as a belief that there are unjustified inequalities that need to be reduced or abolished (by advocating for social justice). The term left wing can also refer to "the radical, reforming, or socialist section of a political party or system".