Consideration should be considered normal

Sir
Inconsideration – or it’s little-known twin brother, consideration – are human emotions pretty much designed by whatever Celestial Deity we may believe in to prevent us from tearing each other’s throats out.
Or not.
This is more likely what a pack of feral dogs would do. That day in Creation, long, long ago, when we slithered out of the primordial slime in the human gene pool, we came supplied with an idea that we should not do what we want, as our actions could inconvenience other human beings.
Like noisy parties, or defecating wherever we want, whenever the urge took us.
Or taking what we want, or need. Instant self-gratification, hunger, the need to pee ….basically, the need to think before we do. Would I be a nuisance if I do this? Is this normal?
Gene