When a person is called to the ministry, there is an anointing that just comes upon him or her to stand in an office. Otherwise the person would just stand up and talk. It’s good to talk and share whatever you have, but that’s different from being called to a ministry and being set in the Church.
Until Jesus comes, “all of us” as a body of believers will never come to that place of maturity. When Jesus comes, some spiritual babies will just have been born into the family of God. They will not have had time to mature. These ministry gifts are God’s program for the maturing of the saints until Christ comes for His own. We need all five ministry gifts working together to bring the Body of Christ unto full stature in Christ.