Wildlife represents biodiversity,which is important for your own health and the well-being of the whole planet. Look at it as an interconnected ecological system ,where each macro- and microorganism ,whether animal, plant or fish affects the other. Failing to protect any unit in this system ,a natural habitat of any organism for example will trigger a dynamo effect ,that is likely to induce a non-equilibrium in the ecological system as a whole. This might damage or endager the life cycle of some species.
There is an estimated number of around 40,000 species of animals, fungi and plants that benefit humans and more than the third of our pharmaceuticals originated with wild plants.
So protecting wildlife is protecting our own health and that of the planet !