She may be mad, he realizes abruptly. Not clinically insane, just at odds with the entire universe. Locked into a pathological view of her own role i… - Charles Stross

On the other hand, unreliability never stopped anyone from using a given technology—just look at Microsoft if you don’t believe me.

Everybody thinks they're doing the right thing, kid. All the time. It's about the only rule that explains how fucked-up this universe is." A wan smile crept across her face. "Nobody is a villain in their own head, are they? We all know we're doing the right thing, which is why we're in this mess."

Most police work boils down to minimizing the impact on society of stupidity; of the remainder, the overwhelming majority is about malice and deliberate evil, but it’s still almost all stupid.