Meh, it takes all kinds. I understand your perspective and respect it. At the same time, there are good arguments for conference loyalty (after team loyalty, of course).
First, logically -- a rising tide lifts all boats. If folks think my conference (whatever conference that might be) is strong, folks will think better of my team as part of that body of institutions. That is just as true if my team is the conference champion as it is if we're the cellar dwellers. It works academically, as well as athletically and in many other ways. So I should want my conference to be well thought of.
And second, culturally -- there is a rich tradition of football in the SEC (and in the B10 too, of course). I personally am very pleased to be surrounded by the traditions of Ole Miss and the Grove, the Georgia Bulldogs of Vince Dooley and Hershel Walker days, Alabama and Bear Bryant, the Third Saturday in October, the Iron Bowl, the World's Largest Outdoor Cocktail Party, and on and on. I love being part of that, just as I'm sure many B10 fans love being part of the whole Hayes-Schembechler, Cheesehead, key-shaking, I-dotting mural that is B10 football.
So it takes all kinds of perspectives, and--on this subject--none are wrong. I personally was a little bit touched to see an Iowa fan come across and wish the NU fans well. It was a classy move, just the kind of sportsmanship I'd expect from the Hawkeyes having gotten to know them a bit last winter.