I don't know if this really qualifies as the same sort of thing, but I do recall hearing a story about cabbies somewhere in Asia: A sociology professor I had a

I don't know if this really qualifies as the same sort of thing, but I do recall hearing a story about cabbies somewhere in Asia: A sociology professor I had assigned us a project to do something that would be "considered abnormal to the general public", and then document the results. He had mentioned over and over again to try and implement "as many safety measures as possible during planning". The professor went on to explain that the reason for harping on safety was such a big deal because a student of a previous class (decades before ridesharing) decided that their project would be to bring their personnel vehicle to where cabbies would line up. The student would instead offer rides to customers completely for free. I believe they even had a little sign they put on their window. After this occurred two or three times, all of the cabbies completely boxed the students car in and called for the police to come. If I recall correctly, they were yelling, screaming, and honking at the student about how they were taking money out of their pockets. Some were accusing the student of taking customers to an undisclosed location and robbing them in order to get paid, while others were saying that doing this for free was essentially stealing from the cabbies, since the student didn't have a taxi permit. I'm not sure if this was a matter of corruption as much as it was messing with/hurting people trying to make a living, but, I did think it was interesting that all of these different cabbies, from all of these rival taxi companies were all willing to work together spur of the moment, to stop someone who they couldn't possibly compete with. As I understand it, the depths of the rivalry between some of these companies ran pretty deep; it was shocking how willingly they all were to join up to crush this outside threat.