Haw. Rev. Stat. § 378-69: Conflict with common law, precedence.

The rights created herein shall not be construed to limit the development of the common law nor to preempt the common law rights and remedies on the subject matter of discharges which are contrary to public policy. In the event of a conflict between the terms and provisions of this part and any other law on the subject the more beneficial provisions favoring the employee shall prevail.