Ultimately the engineers who created these tools can be help criminally culpable if they knew or should have known that the tools they were creating were intended for an illegal purpose.

It isn't the kind of thing that is likely to get charged but certainly something that investigators can use to put pressure on low level employees and get them to testify against their bosses.

Uber has pissed off a lot of people so don't underestimate the "karma" that they have coming to them. Lots up people lining up to piss on their grave while laughing heartily.