Top executives and directors of the biggest US business collapses amassed billions in salary and share sales while the stock market was still booming, according to a Financial Times survey. In just three years, they grossed about $3.3bn before their companies went bust, having wiped out hundreds of billions of dollars of shareholder value and nearly 100,000 jobs. The survey backs the words of Alan Greenspan, US Federal Reserve chairman, who two weeks ago attacked the "infectious greed" that distorted American capitalism during the late 1990s - an era in which achieving long-term corporate success was not necessary for managers...