The ratio decidendi is: (1) Presidential powers under section 82(1)(k) of the interim Constitution, though historically derived from the royal prerogative, are now constitutional powers that must be exercised subject to the Constitution and the Bill of Rights, including the equality provision in section 8. Such powers are therefore subject to judicial review for constitutional compliance. (2) While discrimination on the basis of sex triggers the presumption of unfairness under section 8(4), that presumption can be rebutted where the discrimination does not fundamentally impair dignity or equal worth. (3) When the presidential clemency power is exercised wholesale (categorically) rather than individually, and confers a benefit on a historically disadvantaged group (mothers) based on a factually accurate generalisation (that mothers bear primary childcare responsibilities) for a legitimate purpose (welfare of children), without fundamentally depriving others (fathers) of rights or dignity, such discrimination is not unfair. (4) The impact-focused test for unfairness requires examination of: the nature of the power exercised, the group disadvantaged, the interests affected, and whether fundamental rights or dignity were impaired.