Why not?
You think highly of the prize because of some of those who won this award named after the inventor of the first weapon of mass destruction. If you check the whole list, you'll see it's filled with people who not only didn't deserve the prize but also they should not even be free!

As for Krugman's prize, it's in something very silly and not exactly economy related. It's not surprising he's saying some nonsense about Bitcoin at all. Not to mention that his statements are more political (bashing a candidate in the upcoming election) than being about Bitcoin itself.