Ultimately it just means that we have a way to make sure that We the People aren't being punished by laws that we don't consent to being held to.
It puts power directly into the hands of the typical American citizen, which is why our legal system is terrified of it. You don't have to be rich or well-connected to sit on a jury. It also effectively limits what can be done using that power to what a "random" (and presumably representative) selection of the community agrees to. That's what a "jury of your peers" was supposed to be all about.
I'd say that nullification makes it possible for people to truly govern themselves and that makes it an inherently righteous system.
It's the righteousness of the people who make up a community that is questionable, but even imperfect people deserve democracy and the right to self-govern.
