I've always felt that the 2 Nephi scripture was misrepresented. In context, it seems to me to say that they want to persuade others to believe in Christ, since it is through Christ's grace
that salvation comes, not
through works. I always viewed this as a grace-over-works scripture, but of course found out that others have the exact opposite interpretation. I was even mildly "corrected" in the MTC when I brought up grace into a lesson.
I think for some people, works are simply a natural result of conversion, but play no role in actual salvation. It seems like we more often focus on a model of doing good works as a means to conversion to Christ. The difference between doing good from a heartfelt desire, and developing that heartfelt desire through doing good.
Do we serve others because we love them, or do we develop a love for others by serving them? I think there's an element of both. Perhaps "qualifying" simply means gaining a greater love of God as we do good works. In this case, "salvation" could simply be our relationship with God. Grace could be described as God's love for us. It is freely given, and there is nothing we could ever do to earn it. But our
love for God and our appreciation for his love can be cultivated to some extent as we sincerely do good. God is waiting with open arms ready to accept everyone, the only thing missing is our desire to be with him.
But it is all only possible because of grace, since we would never have a chance if God did not already love us unconditionally.
We love him, because he first loved us.