I'm afraid you have a poor idea of what makes high-powered law firms salivate. When they see someone sitting on a pile of billions of dollars, they don't think "how can I piss that person and all his friends off?" They think "how can become that person's best buddy?"
Maybe so. But it arguably depends on firm type.
Costs and expenses (including experts) are typically only a few percent of recoveries. Unless recovery ended up being much smaller than expected, anyway. Fees over 20% require substantive justification.[0]
0) http://www.maglaw.com/publications/articles/00392/_res/id=At...
Maybe the victims won't get as much recompense as they deserve (because so much of the judgement will go to attorneys), but I would not be so sure that Uber will have them outgunned in court. At the very least, it could teach Uber a lesson by putting an expensive crater in their VC runway.