I'll go one farther and closer in concept...Sure, but I would say the same is true for the difference between a sorcerer and a wizard. Does it really matter that one is learned arcane magic and the other is innate arcane magic? Is that not also mostly a matter of style and aesthetics that sets them apart? So why not represent both with the same class?
I want to play a character who dedicates themselves to a high powered being, who in return for me doing their bidding grants me magical abilities.
Am I describing WARLOCK or CLERIC?