Rationalists are still human, and we still have basic human needs.

I see this happen quite a bit: people (even other rationalists, apparently) seem to believe that rationalists should be advanced enough to not have basic psychological needs of this sort. This is a complete non sequitur. How does having accurate beliefs, good decision-making skills, and the rationalist attitude inhibit those basic needs? And why those needs and not even more basic needs, like comfort?