Yes but there isn't a blanket punishment for drink driving. There are maximum penalties listed (and for some offences, minimum penalties). Within the stipulated limits, judges/magistrates have a discretion as to what someone's punishment should be. There are aggravating and mitigating factors affecting the punishment given. It's not like EVERY drink driver gets disqualified from driving for 6 months and fined $2,000.
I do not profess to be an expert on HRNZs rules or the JCAs decisions. I am thankful that you popped on here because I enjoy your posts.