It's just that state firms often are less efficient than private ones because they have three burdens to bear: implementing state policies based on noneconomic concerns, accepting legal restraints and interference from government agencies, and the human failing of usually performing public tasks more poorly than those involving private profit. Thus people often are dismayed with state firms.
國營企業因負擔政策任務，受到人事、預算等非為營利所設計的法規所限，以及「官馬肥瘦，事不關己」的人性弱點所轄，經營效率和利潤往往不及私人企業，因而經常讓人提起國營事業就大搖其頭。