“How Elizabeth Holmes fooled world’s most powerful men” (January 6) explains how investors were betrayed, among other things, through big-names endorsement.
In financial services, the inevitable information asymmetry (between providers who should know and consumers who can’t) is controlled through prudential regulation, with buffers of capital, stress-testing, licensing and enforcement.

Barring scandalous exceptions including regulatory malfeasance, this has generally worked – for want of a better alternative.