Ultimately, most of his actions turn out to be in some way flawed and generally immoral in the logic or lack thereof in their formulation, as he often finds himself the willing or unwilling pawn of those around him, for good or (mostly) evil. His systemic redemption is found only in his final act, one of self-sacrifice, his only action dually motivated by good intentions and with arguably good consequences. This puts him in harmonic opposition to the character of Kain (though he sacrifices himself not only to escape his curse of infinite death/rebirth cycle or to help defeat "the true enemy", but also for Kain - to whom he pledges allegiance), whose behavior is characterised by viciousness, manipulation and the belief that every person and thing is utterly expendable, but whose actions generally turn out to be right, because he defies those around him, most of whom turn out to be directly or indirectly in league with evil.
Kain proudly admits his actions are motivated by lust for power and revenge (but he truly was predestined to become a tyrant, only in a quest for survival and because of Nupraptor's curse, at his birth), while Raziel unrelently claims his sole motivation is a desire to save the world and that he is solely guided by morals. Kain devises witty schemes out of cruel calculations, while Raziel is more impulsive and only thinks about his own actions after he has committed the irreparable. Raziel unrelently switches from one master (often a manipulator) to another (Moebius and the Sarafan, Kain, the Elder God, Ariel, Janos Audron, Kain - again, Raziel is either being lied to or being told half-truths or being told what they think the truth is), while Kain only follows orders when they suit him and never trusts anyone (not even his only love Umah, the female Vampire who cared for him during his comatose sleep in Blood Omen 2).