Fraud, corruption, and waste is a fact of every human organization because imperfect creatures can only produce imperfect tools. The idea that anarchy will produce a "society" free from corruption, fraud, and waste is as ludicrous as the delusion of a perpetual motion machine. Your malcontent is not against the ruling establishment, but against humanity itself, and ultimately against God.

it's just as clear that armed rebellion could never improve the quality of life of people suffering corrupt governance.

The above is statement is a fact. Every peasant revolt against their betters has resulted in exponential misery for those people these "revolution" purported to serve. The Czarist autocracy may have been harsh, but it was a paradise compared with the Bolshevik terror that replaced it. The Soviet system was oppressive, but it was infinitely preferable to the chaos, corruption, and non-governance of oligarchs, following Soviet collapse. The Bourbon France may have been mismanaged, but compared with the Terror of the muck, it was the model of efficient governance. The Spanish colonies of Americas may have been maladministered, but compared with the cesspool of "democracies" resulting from Bolivar's insane revolt, remains infinitely preferable.

However mismanaged current Western bureaucracies, servitude under your current masters will be infinitely preferable to whatever lunacy your ill-conceived, malcontented popular armed revolt will engender. Only those inexperienced, foolish youths subscribe to the absurdity of "revolution" and "reform," puffed up with the hubris born of ignorance, to imagine themselves gods with knowledge greater than that of all the collective sum of human experience thus far. Rather than dictating to Heaven their whims and attempting to bend Heaven to their will, perhaps your humanists ought to discern God's will and law and align their lives according to natural order. The current miseries of your societies are divine punishments for the your own hubris.

The paranoid conspiracy theories and information concerning the failure of your betters serve naught but to feed your malcontent and hubris. Rather than waste energy and resources feeding their own egos, it would be preferable for all involved, if the humanists learn their place and work towards fulfilling their duties. Society functions best when there is a place for every man, and every man is in his place.