I would suggest you do your research. First of all, it's a U.S court.
If you sell me 10,000 shares of a $1 stock for $10,000 and then after contracts are signed, you reneg and the shares go to $100, my damages are $1,000,000, not $10,000. Same concept here. If Rontain is now worth $1 billion, losses could be a billion.
As far as David Boies goes, every one of his fees are millions. If you call him and your small fish, he's not taking your case. I would bet $250,000 for retainer. So pleeeeeeeeeeeze, David Boies did not take this case because of a retainer.