"It would make sense to be evil?" Can you imagine what such a world would be like? You're ignoring the biggest factor, consequences. The more power you seek, the bigger the target you become.
By logical thinking i surely can imagine such a world. It would naturally organize itself in pyramidal scheme of power, where the Boss who is on top is the one who makes rules. Those who are less powerful than the Boss would take positions beneath him, where they would command those beneath them and so on. It is law of the Nature itself, forming a chain of food, or survival of the strongest, where strongest define the rules.
And history shows us that such system is not only possible, but was prevalent in the ancient time. Rulers were often tyrants who defined what is good and what is bad, who lives and who dies, and it worked just fine as long as they were alive and strong enough to maintain such system. It destabilized into anarchy only if the ruler died, but soon would reform with new ruler and so on. Even today, democracy as a system where all are truly equal before the Law is an exception, not a standard.
And logically thinking, when considering evolutionary principles, person being evil in therms of breaking the rules has great advantage over those who always play by the rules, so again I would go with C235, being evil is just plain better, as long as you can get away with it.