I know, I know, I know. I'm not disputing the fact that Maximilian Kolbe is a saint and is in Heaven. He performed the ultimate act of charity. He died practicing the Faith but he didn't die for the faith. There's a difference.
It is a bit perplexing that he is recognized as a "martyr" first, before the other merits of his life. Thor76 points out some of these merits in his previous post. I think part of it could be the fact that St. Maximilian said some pretty politically incorrect things during his lifetime.