Security Device Enclosed

What is it with these stickers that come stuck on the boxes of CD, DVD, video game and other media disks? I notice nothing in the damn box. The box is full of nothing but the disk and various flyers and advertisments begging me to buy other shitty movies that happen to be made by the same company that just pissed me off by putting this sticker on the box so I can’t open the god damned item to watch the movie or play the game. Why are retailers such clueless, mean-spirited bastards?