The major distinction to make here about how the MC acts, is to point out that the MC totally had the option to not force the guards to submit via violence. The MC chose to step all over them, and humiliate them.
While I can kinda get it, it also shows how much of a Chinese-esque writing this comic suffers from. The MC's a self-righteous murder hobo, and he loves being a murder hobo. That's a real downer.