Again these people are like Osama Bin Laden, Escobar or Chapo. Every cop in the US wanted to be the person capturing them, every administrator pleaded their superiors for resources to go after them, hell people became cops dreaming of making such arrest.
Nobody dreams of chasing a girl around the globe because she convinced some Private Equity Funds and Family Offices to finance a moonshot health bet and then couldn't face the reality that the bet would never convert and so she started lying.
The OneCoin girl for example, if she never sets foot in an airport and has cut ties with family and friends, they'll never get her.