Does not matter if you did something or not. They actually prefer if you didn't.
The goal is scare the rest of people who might think about stepping out of line by doing something perfectly legal but of which our betters disapprove.
The most important thing to keep in mind is that
You may bank account, a house or even a 401k. The federal prosecutor has a printing press for cash with reams of paper and barrels of ink.
The Feds know exactly what you and your family are worth and so do your defense team.
The prosecute until your cash runs out and then they send you to a cage with zero net worth. And that might be better than being on the streets with no net worth.