Whether through jury nullification or through forcing a hung jury... when one does not cooperate with the law, one places one's judgement above that of the collective (as manifested in the law).
The only difference is how one *acts*.
Jury nullification results in "justice now", for the specific case at hand. It may result in a furor in the press and populace and may ultimately result in a change of law.
A hung jury nullification may delay injustice for the specific case at hand. It may result in a furor in the press and populace and may ultimately result in a change of law. It may or may not result in justice for the specific case at hand.