It's very simple. These people were all corrupt, and protected by the system up until now.
Their improprieties like Leticia James filing fraudulent mortgage applications, and Schiff doing the same, or Bolton hiding classified documents at his house, all of this stuff was blatantly overlooked, and also used as part of the blackmail system used to keep people in line.
Not all blackmail is done using crimes against children. Sometimes it's as simple as having the Sword of Damocles of a fraudulent mortgage application for that second house paid for with all the corruption money hanging over your head that keeps you in line.
The great part about setting people up to fall with white collar financial crimes such as this? It makes it very easy to look like all the crimes were the results of improper and irresponsible actions by individual people, not crimes which were committed as part of a greater scheme. It also makes it easy for such a crime to simply be buried and left unnoticed until it "conveniently" comes out when the person becomes a problem. This way when you burn an asset, it doesn't fall back on you.
The fun part about this, is that Trump now has access to all of this, and so he can start using it to burn people left and right.
I think you're about to see a lot more of this. It's gonna start happening left and right. Before the grand conspiracy stuff even comes out you're gonna see people dropping like flies because of this. I'm calling it now.
I bet they even use the systemic enablement of lower level crimes like this as evidence in the grand conspiracy too. That's also why you'll see these come out first.
They need the base blocks of the pyramid before you put on the capstone.
Or use the low level crimes to bring them into the interview room then reveal what's waiting for them. Advise them that turning State's Evidence might be a good way to see charges reduced.
Have them sing a little song about organizational structure, provide signed affidavits on the higherups, etc.