Speakers that reveal bad recordings? Not for me.

Why is it ever desirable to have speakers that simply reflect whatever they are fed, for better or worse?
I can control the upstream equipment, but I cannot control the quality of the recording, which severely limits my freedom of music choice, defeating the purpose of an audio system. This just seems like common sense to me, and I get annoyed when a dealer or whomever mentions this as sign of quality. (Thanks for reading my rant.)