I know a person with an open router and a redirect for unauthorized MAC addresses to a page of viruses. Just because someone doesn't secure their network doesn't mean they don't know how. If this person is in a place where they are likely to get a lot of random connections, they very well may have a sniffer and data miner because they derive pleasure from causing others pain. On the other hand, if the network was in the middle of nowhere and there were lots of secure networks in the area, I doubt even the most depraved would go to the trouble.

As far as Singapore goes, there, you can get cained for spitting your gum out on the ground; I wouldn't use them as a judge of sane judiciary process.