“This is a huge problem – one that, over time, can easily add up to a difference of tens or even hundreds of thousands of dollars in retirement savings. Under the current rules, some of the financial professionals offering retirement investment advice are legally bound to look out for the best interests of their clients; but other professionals, while perceived as having such a duty and clearly benefiting from the perception, are free to put their own interests first, even if that means saddling their clients with needlessly high fees or inappropriate risks.”