Theft is a very forced metaphor for software piracy

[Hephaestos]

I like his approach (read only a few §).

but yeah Piracy is more like getting on the train or bus without a ticket or listening to a tour guide near you when you're not part of the tour.... stuff that is not really frowned much uppon.
It's basically stuff that if goes unnoticed, will never bother anyone.

If you want to take the comparison to the absurd... parking tickets, who never had one? getting one means you either parked illegally (in essence, temporarily stealing space!) or that you didn't pay for your parking sport (oh yeah theft of service here)... I don't think anyone would use the word theft for that ^^ but it's the same analogy as for piracy.