Who shall watch the watchmen?

What is with the desire for a hierarchy? Why does one need to pull out of scripture an ordering of ministries which places people in categories of chrisms according to the divine whim?
Here I’m referring to T.F. Torrance’s work Royal Priesthood: A Theology of Ordained Ministry, but he is far from alone. Torrance stands with the Catholic Church via Lumen Gentium (although I think Torrance would shiver at such a prospect – his is not Catholic, and had very few kind word to share about Catholicism in his footnotes). Here is the breakdown of what Torrance is arguing.
It all starts with Eucharist. There, in the liturgical moment, the reality of the church as the body of Christ already, and the body of Christ yet to be comes into its fullness. There, in that liturgical moment, the people are taken into what will be the society of heaven where all the saints will gather. From the Eucharist comes the diversity of chrisms or spiritual gifts that make up the diversity of the body. Torrance pulls out two main chrisms – deacons and presbyters. The ministry of the deacons is to “prompt and shape the response of the congregation in life and worship. The ministry of the presbyter is to “minister Word and Sacrament.” (all from pg 102) So far nothing to drastic; different folks with different strokes all around the…. Body of Christ. Yet Torrance cannot keep still and has to add the ministry of the episcopacy, i.e. bishop, which is to oversee the presbyter (also from page 102). He makes the claim that in the fullness of time, in the glories of heaven the bishop will not be needed because all hierarchy will fall away, but in the here and now, the bishop is needed for continuity and unity. Ah Torrance, do you not trust the Holy Spirit as the overseer? And who shall oversee the overseers? Quis custodiet ipsos custodes? Who shall watch the watchmen? Perhaps we should choose one to oversee the others…. a kind of collogue among collogues, but one that guides the body of bishops (magisterium). Sounds strangely Catholic.
Overall, Torrance is offering a good work (I learned in grad school that nothing is to be described as “great,” because that means you have nothing to criticize ). His ecclesiology is wrapped with the Pauline “already / not yet” in a captivating and powerful way. His understanding of the power of liturgy through the actions of Christ is compelling. He does push for a relational mutuality, an “inner membering” of the church (100) creating the fertile ground for an egalitarian gathering. His emphasis on the Eucharistic is a bit of a stretch for this simple Baptist, but I think I can consider, not Christ in the bread and cup, but the people gathered at the final meal in the fullness of time, sitting with our Lord. Yet why the desire for a bishop? This is where I am lost as a Baptist. In response I would emphasize the power and the promise (to reference Cowell’s work… see a previous posting) of the Holy Spirit to guide the community, to oversee the community and to maintain the unity of the community. Otherwise, the hierarchy create communities within communities; a council of bishops who place themselves aside and apart and above the rest of the Church. So let go of the overseer, and take that leap into the disestablishment chaos of churches trying to be churches guided by the Word, Worship, and the Holy Spirit.