Both methods are needed to compensate for their weaknesses. Dragon’s scope is larger, slower, and more cautious. Luffy’s scope is smaller, immediate, and reckless. He risks more lives and risks major collateral damage. Dragon frees nations, while Luffy frees souls.

Luffy accidentally gives people their autonomy once he realizes the people he likes are suffering. It’s very reactive and immediately address. It’s not a political ideology but instinctive to him. He starts from the bottom, which risks limiting the scope to those around him.