Let me suggest an alternative to there being no Wardens. Instead of trying to track, determine guilt either by their actions and/or a soulgaze, and executing them; you let warlocks do whatever they want. Wouldn't that be a nice world to live in; but, only if you are a warlock.
That's really the only excuse for the Council's policies, that the alternative appears to be vastly worse.
The question is whether the Council and the Wardens could do a better job than they do, or organizes things to produce better outcomes. At the very least, they need to do a better job of PR in the magical world.
A person born with magical aptitude is given both a gift and a burden. A gift to use power that few have. A burden to use that gift properly. Would it be it better if novice magic users knew that the WC existed and that there are consequences and punishments for misuse of power? Maybe. But ignorance of the WC does free the novice from the responsibility that hurting others for selfish cause is wrong.That queasy feeling you get before you do bad is not indigestion it is the rumblings of guilt.
Yeah, but it's not that simple. Yeah, killing with magic might produce that queasy feeling...unless you're defending yourself against attempted rape or murder. Then it might seem appropriate. (In fact, is
has to seem appropriate in the moment to use magic to do it.)
Transforming another? Yeah, we know why the Council sees it as murder, but why would a new talent? Esp. since people can self-transform safely.
Reading minds? Meddling with them? Even here, it's possible for a wrong thing to seem very right under some conditions, see Molly Carpenter. And note, too, that Molly really did almost surely save Rosie's baby from being born addicted, so there's an additional complication. Molly didn't just think she was doing good, she really did do something good in the process of doing something bad. The Jedi mind trick? You're saying Ben Kenobi was a monster just for distracting an enemy?
Messing with the dead? OK, a lot of people would recoil from that out of native revulsion...but there are people would think they could do good that way, too. Esp. since there are gray areas even here.
Messing with time? Well, anyone familiar with much science fiction would know how many ways time travel
might cause problems, but if you'd never thought about it, or assumed that the past was fixed...
And the Seventh Law doesn't even require magic to break. In theory, a total mundane could fall foul of the Seventh Law simply by reading the wrong book in innocence. Think about that.. You find an old book in your great-grandmother's attic, read it, and someone decides you have to die for it. For reading a book.
It is by no means obvious to an uninformed person that this stuff is bad, or why, or why the response has to be so harsh.
The Council does try to remove the stuff that's forbidden so people can't accidentally read it...but even that looks bad to the naïve. 'You're saying you have the right to dictate what I can do with my powers, how I can use them, heck, what I'm allowed to even
read?' 'Yes. And I'll kill you if you don't comply.'