What exactly does the law and ethics have to do with each other?

As a hopeful lawyer soon-to-be (okay wannabe, you made me say it) what does ethics have to do with the law?

I mean, I know ethics has good intentions. It can restrict lawyers from doing bad things. But it also gives criminals leeway to get away from the law? How do they complement each other?

If you know the origin of “ethics” (from “ethos”) and logic (from “logos”) upon which much of the laws have been built in the history of the world, you’ll see why the Ancient Greeks called them branches of Philosophy.

So why have we only taken “ethics” and “logic” from Philosophy and applied it to the law? There’s aesthetics, metaphysics, and others?

Seems like the law is just trying to keep out the others. I say get rid of ethics and everything will be fine.