The secret is to just treat things with respect. You can be respectful of the animals you raise up, you can respect the land you sow. Unfortunately this world lacks a lot of that common respect towards life these days, but maybe this thinking will change in the future and we can live in a more balanced way.
Everything has a cost, and we should be conscious of them so we can work on mitigating them, no matter if the cost is to intelligent or unintelligent life. Most of the biomass on earth comes from unintelligent life.
It's best to be aware of this bias so you can treat these other ecologically important organisms with similar respect we reserve for intelligent life. Conservation efforts for example are often more successful if the animal is perceived as cute, which is kind of sad. I'm not saying don't cut down that corn field for harvest, chop it all, but be aware of what these and other behaviors of the farmer are doing to the rest of the organisms in the area, such as native flora, or microbial life that in turn contributes to your corn yields.