"honest thieves"
"semi-honest opportunists"
"casual thieves"
Strange terms. Maybe "ethically challenged" would be more PC? If one of these creatures does make off with your bike, I suspect you'll find it parked in front of a nearby church.
A crook is a crook in my little book.
Still, the chances of your loaded touring bike being stolen in small town America are pretty slim - even if the rare semi-honest opportunist does come along. I hope he doesn't have his semi-sharp pair of bolt cutters in his truck.