"Don't really understand what all this fuss is about."
As a demoscener and a long time scenemusician I dont understand your comment at all. If I interpret you correctly, in your honest opinion its ok to steal someones melody (not a 4 sec sample, a basis for a song), put it on a several millions sold album and get paid for it.. and thats just ok?
Few years back it was almost a lynchmob at your door if you were caught for ripping someones samples from a mod...