Many ecological studies show that predatory wildlife, including bobcats, exists to preserve the balance of nature. Wild animals help to keep rodent populations in check. In the past, some cities have attempted to eradicate predators, but as a result have seen an increase in rodent population, as well as rodent-borne diseases.
The ways of nature can sometimes seem cruel to us, but many prey and rodent species would overrun both rural and urban areas, damaging crops and vegetation, if their natural predators did not keep them in check. Bobcats and other predators also consume carrion (dead animals), and so provide us with free waste removal services.