So why are rapidgator and uploaded or any other upload services getting off the hook
This page seems to have more information about that: https://en.wikipedia.org/wiki/Seizure_of_Megaupload#Indictme...
It's a bit like being homosexual in countries with harsh state-religions but tolerant attitudes: keep it quiet and nobody will bother you, but if you flaunt it then the law will crack down on you, because you're attacking the basis of the whole legal edifice.