Now that I think about it, when was the last time that we saw a non-hero captain in a Trek movie? Harriman's been discussed to death here. At best we had a couple crooked admirals and that's it. At least when it comes to movies, we didn't have a non-hero captain on screen who came across as remotely dignified as Robau or Pike, and the movies generally get more attention than the TV shows. But even in TV, thanks to Star Trek's long hiatus, that also means that the last dignified, competent non-hero captain we've seen was probably Hernandez of the Columbia, last seen on screen almost 9 years ago. So even Robau's turn on screen comes after a long absence of competent captains.