Do not accept payments from teams who have budget balances that are way beyond typical. The Tatag platform provides accurate and current summary statistics about the paying team, so a reputation engine could factor those metrics to evaluate the concerns that are important to a payment recipient.
As an aside, traditional systems do not prevent similar situations from happening. You have ultra-wealthy people that are each effectively holding an endless supply of money. Should we not be asking that same question whenever and wherever we see it happen today?