And then they save the world and universe, so the warrior gets everything they want (plot permitting) while the manipulator (character) can simply never out-manipulate the DM who decides what reality is?
Nah, they all get what they want. The world is saved, the idiot got the final blow and is hailed as a hero, the manipulator swindled a massive reward for their efforts, and the second idiot ate the reward. Or, more likely, the campaign falls apart long before they get to that bit.
And then they save the world and universe, so the warrior gets everything they want (plot permitting) while the manipulator (character) can simply never out-manipulate the DM who decides what reality is?
Nah, they all get what they want. The world is saved, the idiot got the final blow and is hailed as a hero, the manipulator swindled a massive reward for their efforts, and the second idiot ate the reward. Or, more likely, the campaign falls apart long before they get to that bit.