If you explain what you mean by "the bigger picture" then I'll try and have a look at it. As far as I can see you're adamant that it's an isolated incident when there are at least three other people on this thread (including me) who say it has happened at other airlines. When you consider this forum is, realistically, used by a tiny percentage of cabin crew worldwide, this hints at these types of theft being anything but isolated incidents. So, perhaps it's you who isn't seeing the bigger picture?
Incidentally, does anyone know why airlines are so philanthropically inclined and which was the first airline to introduce charity collections onboard?