I don't think the banality of evil applies here. Banality of evil is when cogs in a bureaucratic machine don't think about how their actions hurt others, because they are just processing paperwork or following standard operating procedure. Regular people doing regular people things can do great evil.
In this case SBF was the architect and the driving force behind the fraud. He decided to comingle customers funds with business funds. He decided to trick banks into processing client money. He decided to split FTX into dozens of shell corporations to make effective oversight impossible. He decided to operate from Hong Kong and the Bahama's.
Banality of evil might apply to a junior engineer at FTX. It doesn't apply to SBF who masterminded the whole criminal enterprise.
In this case SBF was the architect and the driving force behind the fraud. He decided to comingle customers funds with business funds. He decided to trick banks into processing client money. He decided to split FTX into dozens of shell corporations to make effective oversight impossible. He decided to operate from Hong Kong and the Bahama's.
Banality of evil might apply to a junior engineer at FTX. It doesn't apply to SBF who masterminded the whole criminal enterprise.