Part of life is coming to terms with your destruction of the things around you.
With a single step you likely extinguish millions of life forms, from bacteria to creatures like insects. Does this mean that we should never take a step, lest we crush something with our weight? Or plants which have developed natural defenses to not be eaten, and yet we harvest them relentlessly to eat.
Should we not grow food because eating is harmful to the plants? Should we not move because we may harm those underfoot? Now, we can ask this question after deliberating morality and mortality, but what about creatures that cause the same damages we do without the critical thought - when a pig or cow walks around it creates the same risk of danger for creatures underfoot. Do we have responsibility to prevent that pain? Are any creatures at fault for simply existing?
This probably isn't exactly what you were looking at but I've been thinking about this sort of stuff for a long time. That said part of existence is that we can only mitigate the pain we create simply by existing.