What happened in the 70s, 80s and 90s was that IRS told Congress that every $1 appropriated for tax enforcement resulted in $10 of additional tax revenue.  Congress believed it, because it was true, but at a certain point zealous audit and collection tactics resulted in abuse.  Politicians could always get votes by criticizing the IRS.  The more critical they were, the more votes they got.  And, the more money they raised for their campaigns from billionaires who paid no tax and wanted to keep it that way. 

There are banana republics with better tax administration than what we will soon have, but the pendulum will swing back the other way eventually.  Meanwhile, you're probably right.  At least for clients with the correct party registration, audits are less likely than lightning strikes.