take video games for example. there are some extremely violent ones. do they help society? no. should they be outlawed? not in a free country, son! this is the quandry. but why do we think we need legislation? can we not trust most of us to do the righter thing? can we not trust our own selves?
so,
make a set of voluntary laws, recommendations, that correspond where necessary, to existing laws. this lets society know as a whole what is legal, but also what is better.
simplified examples:
recommend: not burning the flag
recommend: your company does not make violent video games
recommend: your sitcom show a little more respect for the audience
recommend: dont retail cigarettes
recommend: make your fast food at least this healthy
recommend: dont eat beef so much
recommend: manufacture only fuel efficient cars
recommend: disarm 50% of our missles
etc
people and corporations must abide by the law, and it's still a free country as that is a crucial principle. but the more virtuous companies who abide by the more ethical standards get some sort of seal they can proudly display.
you like violent movies and suvs? fine, there will always be a supply in a free country. nothing is compromised. but there may be less produced, which is not the least bit unhelpful, and many would say, very helpful for our longterm survival.
there is little incentive to do the righter thing in a greed-based economy. this may be just a little incentive, for it gets everyone on the same page- "if we want to survive, lets all do more of this and less of this." then we can either do it or blow up.