I find it odd that discussions of alignment don't mention 'legality'

Certainly humans have complicated alignments and are guided by emotional morality - we might say many of these principles are hard to define and humans don't agree.

All true, and at the same time the principles get codified into laws, I would guess particularly in areas where harms may result.

Would it potentially be easier to train strong alignment-with-legality vs grappling with fuzzier questions of values?