Training style must generally correspond to the job itself. The OP suggests that its fitting to train people to "care" by showing them intentional unkindness and oppression?
Harsh training is meant to toughen you up bc the nature of the job is harsh.
The military trains you a certain way bc you are about to experience the hardships of war and potentially inflict harm on other humans. Its so difficult and distressing for people that you have to teach and "learn" these harsh realities or you literally will not survive.
Even medicine has a correlation to a more rigid, "toughen up" style of training, bc docs have to learn to use less emotion in medical practice than they would in life.
A doc needs learn to do painful things while feeling less. like communicating a terminal illness to a patient. That is a tough skill doctors must learn.
In contrast, nursing requires us to use other skills in practice. Nurses must comfort the person and help them cope emotionally after the doc gives the terminal dx. We are allowed to care, and its a gift to comfort someone.
Sorry, nursing is not a combat zone, and to train people to harden will disable what a nurse has to do: show compassion.
We arent going to use military education to train kindergarten teachers to care for children are we? No.