It's not tracing the Lawmost edge of the alignment chart, but Law, like light, is a spectrum! Imagine you have Aspex the Abadaran, Eco the Erastilian, and Mephistophelia the Baphomet-brained Mephistophelian, and you've invited them all to your birthday bash tomorrow. "I promise I'll be there," they each say, except Mephistophelia, who insists on putting it in writing and writing four pages of fine print about how she won't be able to attend if her house floods. Later that night, a dragon attacks the city and chews off all their legs.
Aspex drags himself across the city by his fingertips, which he doesn't enjoy, so he can attend the party, which he doesn't enjoy either (on account of how he's in a lot of pain and would rather be resting). But he gave his word and can't break it, so party he must.
Meanwhile Eco sleeps in. If he's feeling especially Lawful today, maybe he sends a messenger to tell you he can't make it.
Mephistophelia, meanwhile, has one of two fates: either she remembered to include dragon attacks when she was listing conditions, or include something broad enough to cover what happened, in which case she can honorably sleep in, or else she didn't, in which case she needs to crawl across the cobbles while cursing her contract-drafting incompetence.
Eco is Lawful.
Be like Eco.
Eco has Law enough.