For instance, many suspect that the murder of Philip of Macedon was not a spontaneous act, and while not everyone blames Alexander specifically, his mother is held a strong contender for the responsibility, and Alexander may even been a party to her plot, if not actually a co-conspirator. In the case of Octavian, you could argue that having to share power with a guy like Antony, whose character was highly dubious long before his liaison with Cleopatra, and even offer up his sister to a degenerate & licentious brute in order to keep the wheels of power flowing smoothly, would fall into the category of things the good guys have to live with. As a similar example in WoT, Mazrim Taim's alignment with the Shadow was very disappointing to me, as it provides a convenient excuse for getting rid of him, rather than having to tolerate a jerk like that and even honor and elevate him in exchange for his first class service. Not only that, a somewhat adversarial and jerkish leader of the BT would make an interesting foil for Egwene as leader of the WT and Elayne as the technical sovereign of the BT's headquarters. Things like that keep them sharp, and while Logain as the eventual leader has promise with his jerkishness, he shows too many signs of being willing to go easy and walk soft around Aes Sedai. As long as Taim is withheld from actually trying the decision by battle, him as a non-Darkfriend but hostile adversary to the Aes Sedai would make for a more interesting setting, IMO.