In the 1960s, workers’ frustration was bubbling over. Measly compensation payments were not enough to make ends meet if they were injured and could not work.
Supreme court judge Sir Owen Woodhouse saw people battling the legal system to prove their injuries were caused by employers’ negligence, and chaired a royal commission investigation.
He recommended a radical change - introducing automatic cover for injured people.
In 1973 the original Accident Compensation Act covered work injuries and car accidents, and an amendment the following year made it more comprehensive.
New Zealanders gave up their right to sue for damages, and in return got the no-faults scheme that still stood 50 years on.
It’s probably more that it’s difficult to prove something damaged his hearing if it’s not mechanical. ACC cover hearing damage, but not congenital hearing loss or Meniere’s disease, etc.
ACC draw a very hard line. For example if you dislocate your shoulder in an accident they pay for it to be fixed but if they think it dislocated due to, say, rheumatoid arthritis or EDS then you are not covered.