Julius Caesar was a man that started off with little to no money. He anticipated for wealth to infiltrate into his life.
Crassus, being the richest man in Rome during the time of Caesar, he gave some of his fortune to Caesar. Crassus funded towards political campaigns to candidates to make sure that his business interests were protected.
Crassus traveled to Caesar's house to give him the money, granting the git of wealth.
With this cash, he used this to his advantage and bought all nice things to show off to all the people that saw him at his lowest point, and see the person that he has become.
With this, Julius threw parties, inviting others to self promote himself and his success.
Julius became the governor of Spain because of his fame, and liking, therefor earned more money becoming wealthier and wealthier.