Alright, let me go into some more detail. I'm going to use unlikely and simple situations and numbers to avoid unnecessary complexities.
Let's say a movie theater company plans to show a movie. It costs $100 to show it, and 50 people buy tickets for $10 each. The theater has then made $400 in profits. However, a 51st person snuck into the theater without paying. If this person had paid, the theater simply would have had $10 more in profits, but no money or physical objects were lost.
Let's say a movie is being released on DVD. A store buys some of these DVDs from a distributor for $5 each and sells 100 copies for $10 each. They've then made $500 in profits. However, one of the customers that bought a DVD ripped the movie from the DVD and put it online for others to watch for free. One person watches this movie online instead of being the 101st person to buy it at the store. If this person had bought a DVD at the store, the store simply would have made $5 more in profits, but no money or physical objects were lost.
Please explain to me how these are different in a practical sense..