Maybe because she her goal is not come up with the least damage to herself, but to do what she finds more moral and right.

Heroes don't play dumb, heroes do the right thing, make a statement, send the message ... and she is a hero, not someone trying to cover her ass.

On the other hand, whatever she do, she's screwed, her future in such legal and power system is not bright anyways. So why not trying to be "die as a hero" then, it's not likely she would "survive" without "selling out" anyways?