Being a good person, and being productive in our communities and through any internatioanl groups we choose to be affiliated with comes from our own altruism. And that is proving to be a very good thing all on its own merits.
That is an excellent position, dear designs (again, peace to you!). It fulfills the words, "When the people of the nations do, by nature, the things of the Law... they are a law... unto themselves." Unfortunately, Israel, the Household of God, repeatedly showed... and shows still... that they need to be GIVEN a law... because they tend to demonstrate that they don't have it written on their hearts.
That "law" was given first through Moses... and later, through Christ.
Note, however, this applies to Israel who belong to God through Christ... and those who go with them (including those of the nations)... and not to the nations who don't, per se.
Again, I bid you peace!
A slave of Christ,