Why did the Romans need Judas to point out Jesus to them?

Although Judas was chosen to be one of the Twelve, all scriptural evidence points to the fact that he never believed Jesus to be God. Judas not only lacked faith in Christ, but he also had little or no personal relationship with Jesus. Judas was consumed with greed to the point of betraying the trust of not only Jesus, but also his fellow disciples. Judas may have desired to follow Jesus simply because he saw the great following and believed he could profit from collections taken for the group. Judas, like most people at the time, believed the Messiah was going to overthrow Roman occupation and take a position of power ruling over the nation of Israel.