This case is significant in South African law for several reasons: (1) It clarifies the application and consequences of judgments in rem in administrative law, particularly that such judgments bind the whole world and affect all persons in the same situation, not just parties to the litigation. (2) It provides important guidance on the proper application of the Oudekraal principle, clarifying that when an initial act is set aside (not merely declared invalid), consequent acts dependent on it also become invalid without need for separate proceedings. (3) It reinforces the constitutional duty of state organs, particularly municipalities, to proactively correct their unlawful conduct rather than waiting to be challenged, as derived from s 195 of the Constitution and the rule of law. (4) It emphasizes the principle of equity in municipal rating under the Municipal Property Rates Act, linking it to constitutional equality rights under s 9. (5) The judgment demonstrates judicial intolerance for local government entities that fail to take corrective action when courts declare their conduct unlawful, and reinforces accountability and the rule of law in local government administration.