Is it? Your definition of theft is something taken that is:
- Physical property
- Taken from the rightful owner
- Taken without the owner noticing / no coercion
So let's say I take your ATM card without you noticing. That's theft right? What if I then go to an ATM and drain your bank account? Given that money was never in your possession (it was just a number in an electronic ledger somewhere, one keeping track of all the loans made and credits owed by the bank [your deposit is credit to the bank, for instance]), then I'm not committing theft, right?
Boy, this literal language stuff sure is tough! But I'd appreciate your clarification, as it seems so very important we only ever use language in a completely literal manner.
It's interesting you bring up 'shared understanding'; you beat me to it. I doubt very much that anyone, except maybe your literal self, thinks employers are paying their workers and then physically stealing the money back when people use the phrase 'wage theft'. In other words, there's a 'shared understanding' of the non-literal meaning of that phrase.
I mean, when someone calls someone else an 'oxygen thief' I don't think anyone else (again, except for maybe you) actually believes someone is running around stealthily taking oxygen molecules that don't belong to them. It's just a funny insult that literally everyone (-1) mutually understands in a non-literal way.
And sorry, I have no idea what 'virtue signalling' is. Is it some kind of secret hand signal?