Aha that might not be a terrible idea, honestly.

I've been leaning towards more politics, especially since that will help with incorporating the P4 boys' backstory. However, that's just the one sibling in the family? There's nothing to say that the rest of them/their parents can't have made their money through other means; maybe business-savvy, like stock market exchanges, etc.

I'm open to different ideas if you have a preference!