Earlier quoted context omitted.
"They're probably missing out on several tens of dollars." * "The large number of people pirating songs" Yes, they went too far, but for fucks sake, it is really hard to imagine that these acts hurt a company?
I sell doodads. You've never bought one from me. Can I claim that you've hurt me? After all, you've never bought any. (I can show you my bank account balance, I really am hurting). The sticking point, the part that will make it feel to you as if my statement above is non-sensical, is somehow you've managed to attach the idea that they're selling something to the idea that other people have a (very) similar something…
Say you created those doodads using your time, efforts and resources. Your doodads provide people some value. People usually buy doodads as recompense for that value. But if someone "pirates" your doodads, it means they acquired the value without fairly compensating you.
So you: invested time, effort and resources to provide value to others. The pirates: benefited from that value and gave nothing back. Is that not unfair?
What if those pirates further shared your doodads with their friends (or, you know, random people on the Internet) further depriving you of people who should be paying you for the value your doodads provided. Now can you not claim that the pirates are hurting you?
You may focus on the zero marginal cost of copying digital music and movies and video games. However, observe that the value is not in the bits you copy but the experiences they provide to your mind. If they are truly worth zero to you, I don't see why you should be wasting your time experiencing them in the first place.
If I were to guess, you have not "cultivated that idea" because you've never created something that people found useful, something which you'd think you deserved compensation for, but which was taken without giving anything in return.