in this case, the "audit" consists of an automated letter sent to their mailbox requesting additional information. It's not an IRS attorney opening their books and going line by line.
I have heard that the IRS doesn't have the resources to go after people who can afford good lawyers
Though I was referring more generally to things like known pedophiles getting slaps on the wrist by the feds, the spouses of politicians making millions insider trading, politicians not facing consequences for deleting public records, ect
https://www.propublica.org/article/irs-now-audits-poor-ameri...