meh, some of those 'copies' are really stretching... and some of the 'origin' pieces I've heard before... some of it is very similar, like the tom waits stuff.
I wonder though, given how incestuous western music is... again, please see hans zimmer, john williams, all rap stars, nearly all metal, nearly all R&B, pop, trance, drum and bass... I wonder how much of this is driven by good old fashion jealousy?