Wait, how do you make a living from that? Like publishers need you to break their stuff out so they can resell it long after the developer is gone or something?
Organizations that apply 3rd party DRM to their products often want independent verification that the DRM functions as intended (there's a lot of snake-oil), and a quantification of how much time/effort it takes to break the DRM.
Wow. Kind of like red-team hackers testing the security of their website or whatever. Sounds like a dream job for the right person...a "drmcometru" if you will ;)
By the way, aren't you the AutoModerator guy on Reddit and also, the /r/Games moderator or something. Cool beans, dude! You made some god-tier product there.
Another answer is that some companies need the DRM broken on software where the original developer's company may no longer even exist, yet they rely on the (often extremely old) software for their critical production line equipment, whose replacement costs would far exceed that of breaking the DRM and sometimes "porting" the software to new hardware (i.e. breaking the DRM may be a first step.) This is often the realm of hardware dongles and such.