yep
As a DM I try to let player define their own alignments as much as possible. I have on one occasion stepped in a said "Nope. that's not Lawful Good." But one time in seven years of play isn't bad.
Possible lawful beings include - sherriffs and constables, city atch guards, paladins and good law-abiding citizens that never cheat on their taxes. They also include thieves-guild members, cheating and scheming merchants and the like.
so, a lawful character doesn't HAVE to abide by the laws of the land if they consider the source of that law invalid. a Pladin would not be violating his oath by refusing to give 1 gp to the "Kill all the elves fund" even if such a donation were required by law. A LN or LE (or even LG) thief would not be violating their alignment by picking the pocket of a rich noble even if such practice violates the law of the land because they follow the law of the street.