Look, there were over 1,000 indictments of union leaders and administrative personnel (not the members) between 2001 and 2008. Over 900 convictions. I hinted at the CalPERS misbehavior, which actually involved exploiting ENRON stock. They have cheated in elections, used violence in disputes, and have a long history of criminal activities. About half of the Department of Labor Inspector General's labor racketeering investigations involve pensions and employee welfare benefit plans. We could go into convictions on violence and a lot of things worse than screwing a stockholder.

If your only criteria for corruption is the total dollar value of the crime, then maybe you're using the wrong meter.

And yeah, I don't see that much difference in selling someone a stock you know is going to end up worthless and promising someone a pension you know damn well there's no money for.