Just out of curiosity, you haven't tried a sub playthrough at all?
I imagine is not a (series of) kink of yours, but my suggestion is when/if you find some time, give it a go, while the ovvrall story/plot remains the same the VN changes drastically.
That said I personally have no issue with the dominant side not being as "harsh"/violent as the submissive one, it makes sense in-lore, males simply put are the inferior sex in this setting.
At this stage of the story even a super dominant Kane is still a nothing compared to any non slave woman, basically except for the female pod (and the slaves you can win betting) everyone else accepts Kane as a privileged, but still a male.
Raven has a higher status than Kane, and for example the 2 assistants are employees not K levels.
Still if one goes for the "evil" dom path, Kane gets to:
Sure is nowhere near as often or as bad as it happens to him (and every male) on the sub paths, but again this is mostly a femdom world, and more things might yet come, again at this stage Kane is at best K9, which is still pretty much a slave, just one with potential and some benefit, but as you can notice he's never alone when taking decisions, there's always a higher ranked female around.