I know it's an easy metaphor for power, but every bad guy being some sort of sex fiend will get old sooner than later. Also feels like every kill the her reason gets pettier. We're also getting closer to an actual ero-guru chapter.
I wonder if he's going to say stuff like "the principal is a king, ruling over the school" while being strapped to the cuck chair and undergoing his surgery
TBF, this manga is/was basically drawn and written with personal vigilante justice in mind... relying on public opinion was never an option for personal justice; only vengeful killings. That being said, going to the news media and trying to raise an issue as a single mom who has a limited social circle is likely impossible in Japan.
Now on your first line... think of it as the lecturing speaker being a complete asshole in a position of power showcasing their cruelty in full. The principal literally gave 0 f***s and spoke of his son as if his son is truly an exceptional person. If you need a real life example, look at the current president of the united states.