It is the intent of the legislature that chapter 176 be interpreted so as to assure the quick and efficient delivery of indemnity and medical benefits to injured workers at a reasonable cost to the employers who are subject to the provisions of this chapter. It is the specific intent of the legislature that workers’ compensation cases shall be decided on their merits and that the common law rule of “liberal construction” based on the supposed “remedial” basis of workers’ compensation legislation shall not apply in such cases. The workers’ compensation system in Minnesota is based on a mutual renunciation of common law rights and defenses by employers and employees alike. Employees’ rights to sue for damages over and above medical and health care benefits and wage loss benefits are to a certain degree limited by the provisions of this chapter, and employers’ rights to raise common law defenses such as lack of negligence, contributory negligence on the part of the employee, and others, are curtailed as well. Accordingly, the legislature hereby declares that the workers’ compensation laws are not remedial in any sense and are not to be given a broad liberal construction in favor of the claimant or employee on the one hand, nor are the rights and interests of the employer to be favored over those of the employee on the other hand.