reasonable fans demand their teams run in the red (actually I'm pretty sure Rogers Communications is has more money than the Lerners)
11 teams DO run their teams in the red (or did last year). However, a "reasonable fan" might look at those teams - Dodgers and Royals but also Phillies, Blue Jays, Reds, Yankees, Marlins, Diamondbacks, Rangers, White Sox, and Indians - and draw a conclusion that these teams are not running in the red because they're optimizing playoff chances, but because they CAN'T RUN THEIR BUSINESSES EFFECTIVELY.
The 12 teams that made $15 million or more last year in operating profit (Nats were at $22.4 million) include market suckers like the Astros and Twins, but also: Rays, Pirates, Red Sox, Athletics, Braves, Giants, and Cardinals.
So another conclusion that you can draw is that we should be GLAD the Nationals are profitable, because it's indicative of ownership that KNOW HOW TO RUN A BUSINESS, which - like all those other long-term successful franchises - gives us a good chance of continued success because the same know-how that leads to good profitability decisions leads to making good baseball decisions.