Final answer:
Aristotle was concerned that the rule by a single person, or monarchy, might lead to tyranny. He proposed a balanced government, a Politeia, where power is shared, especially among the middle class, ensuring a commitment to the public good and the rule of law.
Step-by-step explanation:
According to Aristotle, the governance of a state by a single person, or monarchy, held potential for devolving into tyranny. This form of rule diverges from the ideal of a ruler attending to the good of the community, instead serving their own interests. Similarly, Aristotle also cautioned against oligarchy, where a small group rules for their self-benefit. To mitigate these risks, Aristotle conceptualized a Politeia, a government embodying a mix of democracy and oligarchy, where political offices and power would ideally be reflected by citizens of varying wealth, especially the middle class, thereby fostering the rule of law and the public good.
Aristotle's concerns remain relevant, understanding that the concentration of power can compromise the welfare of the whole society. His ideal vision was a society where citizens, particularly a robust middle class, could partake in governance and maintain a balanced, equitable government invested in virtue and the communal welfare.