The cultural difference explained:
Just as a European NHL player can grow up from child to young adult playing for the same club team, they also go through their teen years in the youth national team program, where the hockey culture invests all of its know-how to develop as good players as possible. If you insist on the importance of monetary investment, the federation also invests money in juniors and gets it back from international pro tournaments.
The European sports culture in all team sports dictates that players sever their to ties their employers to play for the national team once in a while - regardless of who pays the salary at that point, they are expected not to obey the money above all. It's not a contractual obligation, but after all we're talking ethics here.
There's also the communal aspect. Canadians may feel united under the quest for the Stanley Cup, but with players aiming to leave the league for the NHL, Finns can't feel the same about the domestic league. Instead, they are drawn together by the national team. With his lacking enthusiasm and commitment, Kiprusoff is excluding himself from the group.
This isn't strike one for Kiprusoff. You may remember that he flat out declined to play in Salt Lake City after the disappointment of being benched in favor of Pasi Nurminen in the 2001 WC.
In the media and common Finnish sports culture there is talk of athletes being increasingly selfish and valuing money too much. Committed hockey fans don't feel the need for such rhetoric, but nonetheless Kiprusoff doesn't fit the picture well.
As for the practical issue, in Finland teams don't tend to toy with players' health as often by playing them when they are injured. That's also why the diagnosis "two months from now, you'll need to rest for a few weeks" isn't received well.
Trying to delve into the Sutter controversy, I'd see that the Flames staff didn't make the decision based on Kiprusoff's nationality, but somewhere deep within the mind the sense of justice is demanding that they take the same heat they would get if an equally important part of Team Canada were in question.