Assume the role of a Lead Designer for a high-fantasy novel series. Design a 'hard' magic system based on the manipulation of sound waves. Define the three hard laws of this magic system, including specific limitations and costs. Explain how this magic system has influenced the evolution of the world's architecture, military tactics, and social hierarchy over the last 500 years. Ensure the rules are internally consistent and devoid of 'deus ex machina' potential.