Gargoyle
Adventurer
MasterOfHeaven said:Rogues have Sneak Attack so they can hold their own in combat. Remember, the classes presented in the PHB are designed specifically for adventurers, who are going to be in combat at some point or another. Therefore all of the classes have some way to contribute meaningfully to combat.
If your player really wants to be just a Diplomat, which is not very practical, have him take the Expert NPC class.
All true, but it's also because the rogue is really a redesigned 1st and 2nd edition thief class, and WOTC wanted to replace the backstab ability with something more useful in combat that was similar.
WOTC didn't want to change the game too much with 3rd edition, and having a "thief" type class with no "backstab" would have been risky. You have to remember that WOTC wasn't sure 3rd edition was going to be a success. They knew it was a good game, but were worried that players would be upset if there were too many radical changes. I was at GenCon when it was released, and every WOTC employee I talked to expressed relief that the game seemed to have been received well. At the last GenCon, many of them expressed that they wished they had gone farther with 3E with more changes.
But I agree with MasterOfHeaven; rogues need sneak attack for gameplay reasons as well. And rogues aren't really diplomats or merchants, they're spies, pirates, bandits, scouts, adventurers, etc. They have lots of skill points, but they don't typically spend them on Knowledge skills. Hide and move silently don't require much in the way of book learning.