A belated ray of corporate-disclosure sunlight arrived this year in SEC filings. It was beamed from the legislative firestorm caused by 2007's financial meltdown and subsequent Great Recession.
As stipulated by the 2010 Dodd-Frank Act, as U.S. public companies began filing their 2017 proxy statements with the SEC, they started disclosing the ratio of their CEO's total pay — including salary, bonuses, stock/option awards, incentive and other compensation — divided by the median compensation of…