This is somewhat less grim..Thank you.
My analogy is something like nobility, hopefully without the inbreeding. I mean think about it this way. If every member of a bloodline can have sorcerous powers, then the more members of that bloodline there are, the more magic you have. If we view spellcasters as a valuable commodity in a setting (and why wouldn't we?), the the nation with the most spellcasters has an edge. So I say, raise a few of 'em up in station, and do whatever you can to make then have a bunch of kids.
Yes, I know, at some point the Sorcerers will probably overthrow you, but that's the problem for future generations, lol.
Hm, the more I think about this, the more I wonder if maybe Sorcerers should
be the nobility. The authority to rule truly being in the blood.
The question is, what has to happen for Sorcerer powers to awaken? Is there a catalyst? Random chance? One per generation?
Interestingly, something like this actually happened in the Forgotten Realms. One of the noble houses of Myth Drannor (House Dlardrageth) made deals with demons to have half-demon elf brats with greater power, whose descendants are the fey'ri. I mean, fiends not Sorcerers, but still.