purposely done lol
But to be honest you are over raiting resolution. yes with a high resolution you can fit more on the screen but thats about it to be honest.
Heres a good example. The lion king.
this game was for Megadrive/Genesis Snes. on the snes the game looked more vibrant and blended better.
On the megadrive the game had a higher resolution but the colours looked crazy.
However the low resolution on the snes made the game kinda un-playable because you could not see your enemies coming at you untill they are like 2 cms in front. but on the megadrive you could see your enemies from a good distance.
But being as resolution has been high enough to play nearly any game without any problems since ps1, haveing a high resolution is just for the sakes of eye candy. it dont really add anything to the game.