The FTSE100 index stands precisely where it did in the first week of December 1999. Whichever way you look at it, shareholders — including pension funds — have had a rotten run on the economic rollercoaster of the past 15 years. So it’s reasonable to keep asking whether the rise in executive pay over that same period is justified: a report from the High Pay Centre says remuneration of the average FTSE100 chief executive is now at a multiple of 130 times (corrected from the report’s original figure of 143 times) that of the average worker in the same companies....