Sometimes, while the commodity is of inferior quality, the advertisement is full of words lavishing praise on it. If, under such a circumstance, an eminent person comes to help make the advertisement, the advertisement could be temporarily successful before it turns the brand of the commodity in question notorious and, more disastrously, ruins the reputation of the eminent person thereafter. 

请问文中的in question和notorious怎么理解？感觉这3个单词放在一起很奇怪。