It's kind of there in the name: Light Lord. More generally, any radical change in society's moral nature will require changes to a lot of laws.
Again, changing people's moral nature is just one thing a Light Lord might want to do. It's not even something Harry really wants to want to do.
If a Light Lord was known for e.g. developing amazing new medicinal magic, prolonging average lifespans, giving everyone in the world a hundred Galeons, developing faster broomsticks, or changing the laws of physics to discourage murder - but all the time just ignoring human laws - then they could definitely do so without antagonizing the legal authorities.
Edit: New thread posted here.
This is a new thread to discuss Eliezer Yudkowsky’s Harry Potter and the Methods of Rationality and anything related to it. This thread is intended for discussing chapter 86. The previous thread has long passed 500 comments.
There is now a site dedicated to the story at hpmor.com, which is now the place to go to find the authors notes and all sorts of other goodies. AdeleneDawner has kept an archive of Author’s Notes. (This goes up to the notes for chapter 76, and is now not updating. The authors notes from chapter 77 onwards are on hpmor.com.)
The first 5 discussion threads are on the main page under the harry_potter tag. Threads 6 and on (including this one) are in the discussion section using its separate tag system. Also: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16.
As a reminder, it’s often useful to start your comment by indicating which chapter you are commenting on.
Spoiler Warning: this thread is full of spoilers. With few exceptions, spoilers for MOR and canon are fair game to post, without warning or rot13. More specifically: