The scandal arose when it was discovered in 2012 that banks were falsely inflating or deflating their rates so as to profit from trades, or to give the impression that they were more creditworthy than they were. Libor underpins approximately $350 trillion in derivatives.
I guess if it was more than a few hundred trillion, people might start to take it seriously.
Once pretty much nothing happened after this, I gave up most hope there were any honest people who could bring any such things under control:
Libor scandal
I guess if it was more than a few hundred trillion, people might start to take it seriously.
A billion here, and billion there, and before you know it, we're talking about real money.