How does more appeal to the values of kings to persuade them not to impoverish their subjects?

To persuade kings not to impoverish their subjects, it is effective to appeal to values such as benevolence, fairness, and long-term stability. Highlighting how a prosperous and content population enhances the king's reputation and strengthens the kingdom in the long run can be a persuasive argument. Additionally, emphasizing the moral responsibility of the monarch to ensure the well-being of their subjects can be a compelling appeal.