In lore, though, that makes sense. Globox and Ly are supposed to be from two completely different casts, almost. Ly is one of the higher beings, the Fairies, in close contact to Polokus, one of the shapers of powers and one who communicates with the world and its spirits as much as she does with its inhabitants. Globox is, bluntly put, a family man of average intelligence and the sweetest of characters. It's only natural they feel worlds apart; they are. Everyone that appeared in Rayman 2 came from completely different places. It's like a covenant of freedom fighters who coalesced only in the dire circumstance they were in; even the craftsman of the world, the shaper of mountains, the carver of seas, Clark, joins this crew in its desperate attempt to fight the onslaught of ruthless machines, who, again, seem to come from a different planet entirely (which is literally true of course). There's even Jano, who is basically the Devil - or at least the Gatekeeper to the Underworld -, who ends up helping out (reluctantly, or better put, somewhat mysteriously as if afraid or too proud to admit that he wants to aid the heroes in their quest).
What I like about it is that how all of these different people have been meshed into one world, moulded into one story, and that it somehow works. They're a bunch of cooky characters that indeed share no relation, but a common past, one common ideal, one goal: to save their home from the invaders!