The student inmates are, for the most part, never getting out of prison. But, they have committed themselves to spend the rest of their lives serving others in prison.
The contemporary popular evaluation of Guy Fawkes is a great example of how iconic historical figures can become completely separated from their real-life inspiration.
We know, in the abstract, that we might be wrong — we just never think we're wrong in the here and now. But what if the space of being-wrong is precisely the space Christians — as redeemed sinners — are called to inhabit?