[himinlomax]

Negligent vs intentional is orthogonal to responsible. You could be responsible but just negligent, like an idiot lighting up a cigar at a gas station. You could intentionally light a fire but not responsible, such as if someone tricked you into doing it or you were poisoned with hallucinogenic drugs, or just plain crazy.

[mannykannot]

None of these corner-cases do anything for your arsonist analogy. Whatever else one thinks of the utility, it is not plausible that either it or its employees intended to start a fire.

[himinlomax]

Talk about missing the point ...

[mannykannot]

Your ellipses aren't making any case for that proposition...