Having a few very good rationalists applying "fallacy check" and "bias check" to all their own essays would be wonderful... but just imagine the implications of having many mediocre rationalists regularly applying "fallacy check" and "bias check" to their politicians essays and speeches.
I'd love to see what kind of feedback that provides to the politicians speechwriters. "Well, sir, we could say that, and it could give us a nice brief popularity boost, but would that be worth the blowback we get once everybody's talking about how we sent their fallacy-meters off the charts?"
but just imagine the implications of having many mediocre rationalists regularly applying "fallacy check" and "bias check" to their politicians essays and speeches.
Their ability to do this without getting mind-killed is very much open to question.
One of the standard methods of science-fiction world-building is to take a current trend and extrapolate it into the future, and see what comes out. One trend I've observed is that over the last century or so, people have kept coming up with clever new ways to find answers to important questions - that is, developing new methods of rationality.
So, given what we do currently know about the overall shape of such methods, from Godel's Incompleteness Theory to Kolmogorov Complexity to the various ways to get around Prisoner's Dilemmas... Then, at least in a general science-fictional world-building sense, what might we be able to guess or say about what rationalists will be like in, oh, 50-100 years?