He wants to show that he also has a human heart(damn this is soooo cute!!!).
Listen all...Egypt and Rome try to manipulate the world as it seems to be their real goal now. Think about it. Some great military leaders can ally and show them who is the real boss.
Sounds like the human heart of Monty is still full of blood. The evil intention to persuade the world leaders to go mess up with each other will be a joke in dinner time, when the wise leaders are enjoying their beautiful golden glassess, plates, folks and knifes ... made of fine Eqyptian gold metals.