I am all for ridesharing. But Uber and Lyft, as an example, has nothing to do with that concept. It is not like your Uber driver was coincidentally going to the exact place that you were going.
Ridesharing, as understood before the gig economy, was someone in the company realizing that there were more employees in her neighbourhood and providing a ride for them for a price (some times just sharing gas expenses).
That is a really good approach. Uber/Lyft and others hide their business model calling themselves ridesharing when they are not, calling their employees contractors, when they are not, etc.