The context of the question was recent student murders at a school and comparisons between other teaching and constructivist theory. All existence and activity is part of a continuum. Discipline exists in terms of thought, feeling and spiritual activity as well as physical. We can do violence to another in all four spheres, as well. The violence can be a minimal disrespectful nudge or murdrous.
Constructivism exists across all four spheres and in all settings.
The issue is the degree and balance of engagement of each of the entities, not that constructivism is missing. The recent school violence grabs the attention of most who hear about it. Historically, in some homes and societies, we perceive there has been, there is, less violance and more self-discipline. If our perceptions are correct, the answer to enforcing and promoting discipline at school or elsewhere can be found in those homes and societies. Probably, the answer lies in generations of existence in the basic values, mores and ethics of the people we would study.