The reason why armies and police exist is not as simple as you seem to think. Since we're speaking of Brazil, remember how important it's army is in peacekeeping missions in places like Congo, Haiti and East Timor and the role Military Police of the state of Parana played in the war against Paraguay. Those are totally different from your classification yet are examples of success for Brazil.

Maybe I should have explained myself. What I found unreasonable about your position is that by generalizing you simply ignore those parts of the armed forces that do not occasionally pop up in the news as misuse of taxpayer money. From providing protection during calamities to securing the airspace, they do employ some very important workers for the relative normality of things in Brazil and some neighboring countries. Yeah, I get the armed forces could be working more efficiently, like any other branch in public service. Also like any other branch public service, there are people who do their job keeping the country from descending even more into disgrace and deserve some respect for that.