[Vespasian]

Well, someone develops software for nukes, citizen surveillance systems, fraud schemes and technologies for scamming people out of their retirement savings.

If you consider mechanical and chemical engineering there are also people who develop nerve gas agents (usually deployed against civilians), butterfly mines, cluster munitions and incendiary artillery rounds ready to burn your enemies cities to the ground.

Some anti cheating / piracy software that "arguably works" is pretty tame compared to that.