Why don the aliens use Digital Rights Management (DRM)?
The aliens are substantially more technically advanced than we are, and much wiser as well. They recognized long ago that DRM was folly, and wisely sent all those that backed it to “rest planets” with plenty of sunshine, fresh air and large carnivores. Amazingly, since then, their prices for digital content dropped to very reasonable levels, while very few content provider executives can afford luxury spacecraft. (And the universe is a better place because of it.) It turns out that with lower prices, more content was actually sold and everyone was happy, even the carnivores.