We evangelicals make the foolish mistake of thinking that when enough souls decide to make Jesus the Lord of their lives, that He will become the Lord of all things. The reality is that Jesus is already Lord over all things. His kingdom, strictly speaking, does not expand, for even now it knows no borders. He does not, therefore, engage in some sort of power sharing arrangement with other pretenders to His throne, whether they be false deities, or those who falsely worship them. His lordship is not something we accomplish. It is something we recognize and submit to. It is not something we negotiate; it is something we proclaim.
R.C. Sproul Jr.