Final answer:
Andrew Jackson emerged as a hero due to his military triumph at the Battle of New Orleans and his political appeal as a populist 'man of the people.' He led the rise of the Democratic Party. James Monroe was deemed a hero as he represented the era's political elite striving for national order.
Step-by-step explanation:
The cause for Andrew Jackson to emerge as a hero principally lies in his military success during the War of 1812, particularly the Battle of New Orleans, which brought him national prominence. His image as a defender of the common man was reinforced by his political campaign's success in portraying him as a man fighting against elitism. Jackson's presidency began amidst a wave of populist fervor, symbolizing the rise of the Democratic Party and the celebration of democratic principles in the lives of ordinary Americans. Moreover, Jackson's presidential campaigns highlighted the so-called 'corrupt bargain' and used it to criticize the cronyism of his opponents, positioning him as a champion of the people and solidifying his heroic status. Conversely, James Monroe emerged as a hero of his era by embodying the political elite's efforts to maintain order and unity during a time when the country was rife with factionalism and undergoing significant change.