so cain should've declared herself emperor?
i think you can say:
cain shook up the series, was an interesting obstacle for the regulars to overcome and michelle forbes is always awesome
as a character her actions are undefendable (or so i thought). she consistently made the wrong decisions, whatever her justifications. and saying 'rape-torture is ok if it gets you some intelligence (it didn't though, did it?)' is disgusting.
would you still defend, if say leoben had raped starbuck. 'it's ok he was intelligence gathering and the humans are the insurgents in this scenario'. if you think it was a valid tactic for cain, then this would have to be a valid tactic for the cylons. and for the record there are no strawmen in that equivalency, so don't even try that shit.