One person misled customers and was stung with a $800,000 fine by the courts.
Another was convicted of aggravated careless driving which resulted in a woman's death. However, the driver who got behind the wheel after drinking, escaped without a fine. He received home detention and lost his licence for two years.
The father of the dead woman cannot understand the discrepancy in sentences handed down by different judges on the same day.
Kerry Gunn, 54, died during the earlier hours of June 15 last year after Tristian Harley Mead hit her car head-on just south of Warkworth.
Mead was sentenced on February 10 this year at the North Shore District Court to nine months' home detention and disqualified from driving for two years on the charges of aggravated careless driving causing death while under the influence, and two similar charges of causing injury.
The maximum sentence which could have been imposed on Mead under the Land Transport Act was three years in prison, a $10,000 fine, and a minimum disqualification of one year.
Gunn's father, John Gunn did not criticise the sentencing judge, who he said was constrained by precedent.
However, he told the Herald there was seemingly a lack of a "deterrent factor".
"It won't change the sentence ... the sentence can't be altered or amended," the 82-year-old said.
"But where is a deterrent factor? The offender will sit amongst home comforts whilst [my daughter's] ashes lay cold in her cremation casket.
"I do question the sincerity of those in authority who call for a reduction in the rising road toll, yet fail to provide a meaningful penalty."
He said he was waiting to receive the judge's sentencing notes.
Police prosecutors had sought the full penalty of imprisonment for Mead, he said.
The night before the fatal crash, Mead had been drinking vodka mixers before and during the Chiefs v Wales rugby match in Hamilton, court documents show.
Post-match he drank a further five pints of beer before returning to his motel with a friend in a taxi.
The pair then had an argument and decided to drive home to Northland about 2.45am in Mead's ute.
Mead, 40, was also on a restricted driver's licence, according to court documents.
Further north at the coastal town of Mangawhai, workmates Gunn and Paul Kerr left Placemakers at 4.05am, destined for Hamilton to work at the hardware store's stand during Field Days.
At about 4.50am, as both drivers travelled towards each other on SH1, Mead crossed the centreline and collided head-on with Gunn and Kerr.