Which key legal rule stops a very advanced dimension from forcing its own way of life or government on a newly found, less developed dimension?

The key legal rule stopping a very advanced dimension from forcing its way of life or government on a newly found, less developed dimension does not exist within any currently recognized legal framework. Legal systems, including international law, are established constructs created by and for human societies to regulate interactions between recognized entities, such as sovereign states, within our known reality. International law, for example, operates based on principles like state sovereignty, which grants each state supreme authority over its territory and internal affairs, and the principle of non-intervention, which prohibits states from interfering in the domestic matters of others. These foundational legal principles and the entire body of international law are predicated on the existence of identifiable, recognized political entities and a shared, singular reality. The concept of distinct "dimensions" and their potential interactions or governance falls entirely outside the conceptual and jurisdictional scope of any existing legal system. Therefore, there is no established legal rule that addresses or prevents such inter-dimensional imposition, as the very premise lies beyond the foundational assumptions and operational boundaries of current law.