Check this out, right from Green Dot's 2007 990 tax form:
It might be hard to read, but between 2004 and 2007 Barr was erroneously reimbursed $50,866 by Green Dot. How was this money spent? We'll never know. Barr didn't take this money for himself - but why would he? He's pulling in over 200k per year.
Looks like Mr. Barr did what most high-paid CEOs do: mismanage funds. We'll never know how this money is spent - and Green Dot and Mr. Barr are happy to have it that way.