There is a great article from The Atlantic about the wealth management profession and the ways that the ultra-wealthy are simply above the law. It was written by a sociologist who became a wealth management professional in order to study them.
I disclosed my real name, institutional affiliation, and research aims
throughout the research process; I did not, that is, go “undercover.”
Whether I was attending classes or professional society meetings, I
always wore a name tag that included my place of work, so it was clear
that I was a scholar linked to a research institution. When I started, I
didn’t know if anyone would talk with me at all. Somewhat to my
surprise, the majority of practitioners I met were quite willing to
talk, under condition of anonymity.