In Psychology, it is the balancing diplomat which regulates the instinctual desires of the Id and the narcissistic satisfaction of the superego. Kind of like what America's president does to appease democrats and republicans.
Jacques' Id had desired to rape the petite Christian girl and dump her, his ego wanted to marry her, have kids with her and then divorce her, and lastly, his superego wanted to marry her, have kids with her, and make her his cooking sex slave.
^Revolting, perhaps, but also inherent, and somewhat eternal.
Refer to Beyonce's song, "Ego".