Reminds me of a teacher I had in primary school. She was most of the time okay, but she had her moments where she’d pick a student (usually of a minority background) and just make an example of them.
One kid walked to school everyday because her mum worked and didn’t have time for her in the morning. Sweet girl, but she was often 10mins late. Teacher made an example of her, criticised her entire home life and implied her mother was a bad one.
I once got in a fight with “Bad” kid (he put me in headlock and I rammed him against a fence to try to get free). The kid was troubled and everyone knew it, but if you left him alone he left you alone. The “Nice” kid from nice background told me that I should tell my teacher what happened. I didn’t want Bad kid to get into trouble over me, so I opted to say nothing. Nice kid told his teacher, who then told my teacher, who then made an example by pulling me in front of the class and calling me a coward. At the point I learned that sympathy for your enemy yields no reward to the judgemental.