Luffy destroyed Captain Morgan's statue and unlike the selfish sorry-for-an-excuse son: Helmeppo. Morgan is a giant paranoid, ruthless tyrant with an ax for a right arm. You mess with him, and he messes with you. The captain is ferocious that his own statue is damaged. And without hesitation he ordered his marines to execute Luffy, Coby, and Zoro. Luffy uses Helmeppo to guide him to where Zoro's swords are. He found them only when Coby was caught untying Zoro's post. Luffy got there in time thanks to his "Gum-Gum" abilities.