It collided with a car on a rural road in Mokotua.
The council will call an emergency meeting to discuss his "misogynistic" comments.
Three others were injured in the accident.
"He came up with these big ideas to try and make things better for everybody else."
Others have a range of injuries.
"They're absolutely furious, they're scared, they're uncertain of the future."
The Environment Minister says Rio Tinto needs to clean up its "mess".
The serious crash unit has been notified.
It could take months for some to recover.