Dharma is what the social structures are based on. Everything in the world has their unique dharma. However, the worldly dharma is temporary and if not based on the eternal Atmic Dharma, they will harm the world. Hence even tiny insects are dharma, which they fulfill accordingly, while it might be humans who have difficulty understanding or implementing their dharma, since it has been divided into so many forms, and with an understanding that is constantly diminishing.