Lightroom 5.6 through to LR CC current version - Can it provide camera lense support for Samsung NX range for jpeg format?

Whilst RAW images from these camera is supported within Lightoom - why can't jpeg's be handled in a similar manner?  As jpeg images contain exif information and are essentially very compressed versions of RAW images surely the same lense corrections can be applied?  Camera RAW from version 7.1 has supported my Samsung NX cameras and various lenses within Lightroom 5.6 onwards - but there is no way of applying it to jpegs.  Whilst Apple, Canon, Nikon etc appear to be able to apply corrections to their jpegs - why can't Samsung and a multitude of other manufactures not?