How can I contribute to the morality of one society?

Talking about morality, parents are the most responsible institution and contribute the most, and society is next. For orphans, there are left with no much choice but to let the society to take a good care of it. Nowadays, we face people doing drugs dealing, abortion, and many crimes we can list here, one do it for living, but others are living in a neighborhood urge them to do so, they do not