Text: Finn's awkwardness keeps him inoffensive, but it thoroughly obviates the dramatic arc that's the whole point of Dickens'  If success doesn't change Finn for the worse, then his rejection of the high life doesn't entail the same kind of sacrifices--or come as a consequence of some harrowing epiphany.
Entailment: Finn is inoffensive because he is awkward.
Contradiction: Finn's awkwardness doesn't obviate the dramatic arc that was the whole point of Dickens.