KainD if you truly believe what you wrote, please go see a professional and talk to them about how you don't see problems harming people and things you don't care about if it benefits you.
Thankfully, most sociopaths are not violent...they're just assholes. The only way to attempt to "treat" a sociopath is to teach them more adaptive (beneficial) ways of interacting with other people which is usually hit or miss. On a side note, you can never have a discussion with a sociopath about what is "good" or "evil" because they don't recognize either of those.
In that case, there is no such thing as insanity.
Insanity is a legal term used to denote whether a person knew "right from wrong" during the commission of a crime. As such someone who is legally insane would murder someone, and not try to hide the fact that they killed them. So they would get angry at someone, kill that person, and then continue about their day as if nothing had happened. This is also the reason why the insanity defense is so hard to "prove" in American (since I only know of American) courts. Insanity has the connotation of "crazy" to the public, but it is not found as a psychological diagnosis in the Diagnositic Statistical Manual of Mental Disorders. So yes, you are correct there is no such thing as insanity.
Since I seem to have gone widely off topic...
Blood Mage as a spec is gone.
Blood Magic? We have no idea, if the pc has a means to use it, or not.
For the record, the Blood Mage spec is not gone because of evilness or anything like that. Since when being evil in a game is a problem? ? It's also debatable at best if it's gone because Bioware can't implement properly the concequences, since Necromancer doesn't sound like a saint with no repercussions either, at least socially.
If they put themselves in a bind, making Blood Mages have severe side-effects, then i have no idea why. Blood Mages, gameplay wise, will never be stronger than other mages, simply because of balance. So why go and make evil or whatever mages needing repercussions for something they cannot bring in a game anyway, is beyond me.
Which is probably one of the reasons blood mage was removed as a specialization. Regardless of whether it was "evil" or not blood mage player characters (and mage player characters in general) do not have access/are affected by what other mages are.
Blood mages in lore are said to be widely powerful, they can mind control another person, have easier access to the fade without the use of lyrium, can easily tear holes in the veil, can summon legions of demons (with poor results), etc. Yet the player character as a blood mage can't do any of this!
Deciding to be a blood mage (game play wise) basically gave you access to a small set of spells, no use in conversations, and is largely ignored by the rest of the story. Granted each class is usually ignored by the story besides the "Oh you're a mage/warrior/rogue!" lines that are rarely said by any of the NPCs.
Other than that, i never liked Blood Magic. If it's something so special, why is everyone and his mother one? If it's so common, why do we need a whole specialization dedicated to it? Just make it a tree, and be done with it. Or an ability you can have access to, through story and decisions.
Well most of the mages we run into in DA2 are apostates that are desperate enough to turn to blood magic. They of course pay the price of using blood magic by dying...mostly because they use it against the PC who by default usually has to kill them. If blood magic is "so powerful!" why do we always end up successfully killing them? It seems the only ones that benefit from the "power" of blood magic are the PCs simply because they are the PC and by default they are "awesome". 