Except it isn't, because you're building a massive palace and training supersoldiers.
Normal soldiers, actually. Snow is a wise woman, a trained martial artist and a decent mentor, but she has no War or Lore Charms and her students aren't tiger-warriors. Just normal people who were trained by a very good swordswoman.
I mean I wouldn't nitpick to that extent ordinarily but my character plans keep being warped into this kind of Shaolin super-fortress training an army of thousands that's a government in all but name when my original point was that it was
precisely not that.
The rest of your post mostly just misses the point.
Like, what happens when your King of Thieves has either caused enough chaos that other nations are moving in to pick at the thief ridden corpse of the kingdom or you have so thoroughly compromised the kingdom's leadership that you are de facto the king anyway, even if you don't wear a crown?
The former would mean he failed at his job, since a key part of organized crime is
organized and he's the kind of character who would try to prevent his business from a self-destructive cycle that ends in them peddling drugs among ashes. The latter would be the character failing to achieve his life goal and somehow not stepping out when he finds himself living a life he never wanted.
Like, "I did things and then other things and suddenly I find myself wearing the crown and having to be a king and deal with king things" is a strong and compelling character arc, but it's not
universal. Some characters are smart enough to see where things are headed, and know how to pull the brakes when their life is about to get ruined by assuming responsibilities they do not want.
It's often kind of a callous process admittedly - it involves a character looking a situation they believe they could improve and purposefully saying "nope, staying out of that," even if that causes some things to get worse and some people to suffer unduly; but on the scale of potential Solar sins that's fairly low.
Solars aren't
robots driven by a desire to take over nation. They're epic heroes with epic passions but this discussion manifests a singular
myopia when it comes to what those passions could be. Just because they're on a personal scale does not mean they don't blaze with the fury of Solar Exaltation. Some Solars just want to be "the best" at whatever it is they do, or they build their entire heroic lives around one burning love, or they wander the earth looking for an opponent who can challenge them or hunting the most dangerous game, or whatever.
Solars aren't the fools of the story, doomed to trap themselves in chains of kingship regardless of their desires. This approach frankly baffles me.