For just as the body is one and has many members, and all the members of the body, though many, are one body, so it is with Christ.
1 Corinthians 12:12

The foot isn't unimportant just because it is lower or earthier than the head. All parts are vital for a properly functioning body. It's ok for people to be different, to have different methods, roles, missions, and traditions so long as they are in alignment with God's instructions. We don't have to do all the same things in the same ways.