Don't forget that the Templars took back Jerusalem from the Muslims...
Yes. And in the process, they sacked everything and killed a lot of Jews. I'll be the first to say that the crusades were like WW2, without them, it would be a muslim world, and that would be hell. They weren't as friendly to Jews as people apparently want to believe they were today.
If it wasn't for the massacre and looting of Jews in Israel, the Templars would be heroes. They were not heroes though. And, correct me if I'm wrong, but I don't think they exist any more.