Why did max weber state that legal rational authority is the most rational?

Max Weber argued that legal rational authority is the most rational form of authority because it is based on established laws and procedures that are codified and universally applicable. This type of authority relies on a system of rules that governs behavior and decision-making, promoting predictability and stability in social interactions. Unlike traditional or charismatic authority, which can be subjective and personal, legal rational authority is objective and impersonal, ensuring that power is exercised through legitimate channels. As a result, it aligns with the principles of modernity and bureaucratic organization, facilitating efficient governance and social order.