Quality has nothing to do with "good taste". Quality is a system that uses alot of factors of the raw material, the processing of the raw material to when it hits your tray.
Quality is about deliviring a consistent product, that tastes pretty much the same, wherever you go and whenever you buy it. I can't see how ANYONE can say that McDonalds can't deliver good quality meals. Sure, they may not taste good, but that's now what quality is about.
Budweiser is a very good example. Beer that doesn't have much taste at all, but that beer will taste the same whereever you buy it in the entire world.