When business people speak of a niche, they refer to market position, links to customers above in the value-added web. In nature, a population of species is constrained primarily by the availability of resources. An industry's size is limited by customer demand, not the availability of resources. Organisms cannot live forever. They must produce offspring that survive long enough to yield their own offspring.
Organizations face the reverse.
They can maintain their technology in perpetuity. Creatures camouflage themselves almost to invisibility. Oppositely, companies devote enormous resources to attracting customers. The basic design of ecosystems and economies are much the same. To overcome the survival threat posed by predators, rabbits produce as many offspring as possible.