This comic casuistry, and particularly the last few words, must have stuck in young Cervantes's mind because years later he adapted them to his own purposes in the galley-slaves adventure.
So, in the galley-slaves adventure, his ingenuous idealism is disconcertingly belied by his perversely witty and satirical apology for the social utility of the shameful office of alcahuete, go-between, this being one of the crimes of which convict number four--a tearful, self-pitying ancient with a long white beard--has been found guilty.
So, for Unamuno, Don Quixote's liberation of the galley-slaves is consistent with his--also God's, nature's, and the Spanish people's--preference for hot-blooded, spontaneous punishment followed by forgiveness.
In this respect it's instructive to compare the galley-slaves adventure in his novel with its imitation in Avellaneda's sequel to Cervantes's Part I.
When Cervantes, in his prose-epic "Persiles y Sigismunda, handles situations similar to the galley-slaves adventure, as he does on two of three occasions, the treatment is more serious and less out of tune with conventional proprieties.
So, the galley-slaves adventure can't plausibly be cited as corroboration of the post-modernist view of Don Quixote.
From that paradoxical blend of contraries derives the thought-provoking resonance of the galley-slaves adventure, giving it simultaneously the stark exemplariness of a moral fable and the open-ended virtuality of myth.
There is an ironic appropriateness to this, for the inn and picaresque life are the true realms in which Don Quijote has moved, and in which he himself will be recognized by the Holy Brotherhood troopers, one of whom recollected that among other warrants for apprehending delinquents, he had one against Don Quixote, issued by the Holy Brotherhood, on account of his having set the galley-slaves
at liberty, as Sancho had very justly feared: "le vino a la memoria que entre algunos mandamientos que traia para prender a algunos delincuentes, traia uno contra don Quijote, a quien la Santa Hermandad habia mandado prender por la libertad que dio a los galeotes, y como Sancho con mucha razon habia temido.