This is very sad but what kind of idiot leaves their money on the bike. I put every thing important (money, credit cards, ID, passport, camera etc.) in my handlebar bag bag and it goes with me everywhere, even into the shower at hostels and campsites.
I would never leave my bike on a cable lock in a large town for more than just a few minutes, and even that makes me nervous. I look at the cable lock as a way to slow someone down.
That said they used to hang horse thieves, they should do the same to a bike thief especially for bikes stolen while someone is on tour.