How much should Goldman Sachs pay Lloyd Blankfein? A year after the investment bank’s chief — and virtually all his peers — received what for them was a relative pittance, it’s the big question on Wall Street. And so it should be. Compensation for the head of the industry’s top money-maker will set a new benchmark. That gives Goldman’s directors a golden opportunity to show that the firm is less out of touch than critics suggest. The first, and hopefully most obvious, step in deciding Blankfein’s take — which will also set standards for Goldman’s other top executives — is to throw out bubble-year pay precedents, and any spurious calculations that produced them.