For any individual, after family, the next larger society is the neighbourhood. Having a good neighbourhood is equally important as having a good family. Both are closely bonded in a way that only good families form good neighbourhoods. We should also be very clear that, in this context, the goodness is largely a product of healthy minds and thereby healthy habits. Therefore being part of a good family and being able to contribute to the development of a good neighbourhood are essential for a calm and pleasant life!
Practice it and make it a habit. Then the nature will make it sustainable by triggering necessary genetic engineering!