He got there the same way most white collar defendants do. There is less special stuff going on with SBF than people think there is.
To be fair, blue collar defendants also get much better (financial) terms in the federal system (and often no cash component) than in state systems. The main distinction at work that makes SBF’s case not what people have been trained on by media and common experience is not of wealth/class but of federal vs. state system, when most experience with bail is state not federal and most media portrayals are of (often distorted pictures of the) state systems.
Most people don't know much about white collar crime because it just doesn't come up that often. When a case does become big news, it's worth analyzing it as a case study for how white collar crime is handled in general. The specifics about how he made bail may not be interesting to you, but they obviously are to many other people who don't usually follow this stuff.
As an analogy, look at police brutality or sexual harassment. There are thousands of documented instances that all look pretty similar, but occasionally one story, for one reason or another, will explode and shine light on a messed up situation that many people are ignorant of, or misinformed on.
When blue collar defendants go to bail bondsmen, they often specifically demand collateral from other people, to make it more likely the defendant appears.