Her councillor's job is worth $43,000-plus a year while a backbench MP earns $147,800.
At the campaign launch, Mrs Prime spoke about the recent flood damage, acknowledging how difficult it had been for Northland in the past week.
"Our communities are resilient, but we should not have to be.
"There needs to be more support from central and local government in response to civil-defence issues and preventative measures for the future," Mrs Prime said.
She was standing for Labour because the party stood for jobs, homes and families and she believed Northland would benefit more from a Labour-led government.
Mr Davis said he would continue to advocate strongly on healthy homes, education and ending sexual violence.
Peeni Henare, who is also from the Bay of Islands and is standing for Labour in the Tamaki Makaurau seat, turned out to support the evening.
The three candidates say it is a unique opportunity to have three potential Labour MPs who are grounded in their local communities in Government and say they will be running bold campaigns in their electorates in the lead-up to the election.