Yama made these remarks in Parliament during the grievances debate on Friday.
Governor Yama said millions of Kina are spent only in Port Moresby.
He said many roads built in the city are not economically viable and not many people are using them.
He added that the Government must at all times serve the interest of the people and not personal affiliations with contractors in the city.
Yama pointed out a good example was the Taurama road which cost about K200 million, and the Gerehu-Nine-Mile backroad which cost more than K300 million.
