Why do people who claim to believe the Bible live ordinary lives?

We are supposed to do what God has igned us. Unless God chooses us to do his ministry, we can't be successful in it. Apostles of Jesus were not choosing Jesus, but Jesus was choosing them. So if God wants to choose us, He will do it so. All can not be preachers and all can not be spiritual leaders. We all have a role in life and by living our very life, we can attract many to the Lord. If each Christian sincerely follows the words of Jesus, there will not be any need to preach gospel at all. People will know it from our own lifestyle. Not only that, everyone on earth knows Jesus and whoever wants to know about his teachings, can know it through a number of ways. But there are many who don't regard Jesus as the Lord of every soul. We can not do anything to get such people attracted to the Lord, only he can do it if he wills.