To rephrase, my point is that phrases like "the ends don't justify the means" and "political violence is never the answer" seem to almost always be applied in very specific contexts, completely ignoring other contexts where many people (I'd say "society at large") are completely OK with the ends justifying the means and political violence.
To use your own sentence, I've seen many people in positions of power "coming to completely incorrect conclusions that justify their decisions to harm others", e.g. why bombing children in their beds is OK.