There is a saying in this world, with enough justification, you can do the worst crime imaginable and people will clap for you. They would put you on a pedestal and parade you around on the street over your greatness.
It doesn't matter if the crime you committed harmed the innocent, the needy, or the unfortunate, none of that matters in front of justifications and your right for revenge.
Of course, the world is not so simple, such justifications can only be taken on those the public considers their own enemy, it's why they can relate, it's why they would support you.
That's just human nature.
"Master won't approve of this."
"Yes he won't, but he also won't approve of not doing anything, We need to show him some results, this is the least we can do for him."