the reason why sheep and shepherds are the theme of much discussion in the Bible is very simple

social creatures use language to adapt to living in harmony with each other, there is no social without communication, even swarming and schooling and flocking animals are all social and have coordination behaviour protocols

what this means is that in order to have a healthy human society, there has to be people who know how to program the minds of others, and use it to most importantly defend against those who do it to exploit and degrade others

like a shepherd, who protects the flock from the foxes and wolves and finds them the good pastures to feed on, and lets most of them live a long life and also usually neuters the males to prevent too much animal combat from taking place, which is also to the benefit of the animals

it doesn't matter whether the creature mows the lawn, carries people around or takes down vermin, it has to be trained to be effective, and the population control thing also

the problem we have as humans is that there is too many wolves and not enough shepherds

at some point this infestation will have to be put under permanent control

and Jesus is the one who will lead this pest control coming up soon