Plot twist?!?!? Its like the opposite of a plot twist and whats everyone expecting.She doesn't see it that way, she sees it that she saved the universe, by taking that thing. So called higher calling. Of course if we might find out the one she is working for is evil too and wants to use it for his own power, that would be a nice plot twist.
I would prefer Solarin to not be a stereotype evil villain and this story to not only be black and white.
I would prefer an outcome where Solarin indeed is thinking his actions are in the best interest of mankind(alienkind?) even when he's very ruthless. Theres still enough room for conflict and this power and responsibility can still corrupt him without turning him into a comic book villain.