How are ethics and the law the same

If the majority of companies strive to conduct their business ethically, why is there a need to create laws? How are ethics different from the law? How are ethics and the law the same? Support your answer with real-world examples.  Include theory from our readings.

 Use the QUOTE ORIGINAL feature in all posts in the DQ threads.  Run a final word usage, grammar, punctuation, and spell check.