Not going to tell you that there's no John Carpenter in Mass Effect, but I'd say they're mostly trying to emulate Vangelis, who did the music to Blade Runner.
He's made music for years. He composed the music for a lot of his movies- at least several of the older ones.
But ya, that's cool.
Edit: Ya, it reminds me of his other stuff. He seems to be the only one with that sound. It's the same kind of thing that the music in Mass Effect was emulating- John Carpenter's style I mean.
I'd say it's a lot of John Carpenter and Front 242, filtered through the general sound of Vangelis' soundtracks.