While talking about harmony among various social institutions, we must admit the fact that too many institutions make the life painful. The habit of the modern world is to create separate institution for every individual need. In most cases, it turns out to be an act of hyper activism with little prudence. Ironically enough the systems that are being created for supporting the people itself make the life complex. The root cause of tension in modern world is actually this wayward love for complexity. Therefore, never forget the fact that simplicity is the only fertile soil in which the seeds of harmony would germinate.
Practice it and make it a habit. Then the nature will make it sustainable by triggering necessary genetic engineering!