Punitive damages maybe, plus maybe contractual obligations on damages in case of breach. If they didn't use it, and if a civil case was purely based on damage caused (two big ifs), I don't think there would be much of a (civil) case, no, because there needs to be causality between the breach and the damages, which then there wouldn't be.
Still he could be done on theft of trade secrets & breach of contract and Teza could see what GS had tried what wored what didnt which is worth a lot.