For much of the run of HBO's Game of Thrones, viewers were led to believe time and again that, at the end of the day, decisions are made by whoever has the most money, the strongest armies, or the most supporters. But more often than not, it turned out that the people with the sharpest of minds, not the sharpest of swords, were the people you truly needed to be on the lookout for - especially when these intellectually gifted characters tended to lurk in shadowy places.