It literally effects the thousands of people that have to touch the same shit the people fucking touched. Diseases and viruses can be spread very easily through ejaculant. Not only that, there are two people now carrying the same shit. Idk, statistically speaking, you're highly unlikely to come across something with my jizz stains on it, unlike the shirt tod touched after banging carla out on the new shipment. Then, a thousand other people finger bang the shirt, and voila, u/Glad-Svensk caught zika. Maybe, just maybe, you met the 6 people who live in one of the very many apartments i work at. The exponential rate of infection would be significantly lower in my scenario, especially compared to 2 people in retail, jizzing and squirting all over the goods.