Clarity and transparency. One should be able to open the book to a page, read an argument, and see that it is right.
(Obviously this trades off against other values—and is in some measure a deception --, but it’s the kind of thing that impresses my friends.)
This has no bearing on the point above. In essence you’re just rephrasing Robin’s definition, “better believing what is true, given one’s limited info and analysis resources.” The disposition best-calculated to lead to true beliefs will not produce true beliefs in every instance, because true beliefs will not always be justified by available evidence.
So what?