If the company chooses to allow the thefts to continue unimpeded, why should it be anyone else's problem? Like, if someone walks into your home, picks up some items from your shelf, makes eye contact with you, and walks off, and you let them keep doing that over time, at some point you're just consenting to it. I think if you tried to sue them after they stole some arbitrary threshold, a judge would be right to ask why you didn't say anything at all, not even a simple "hey, stop that".