The idea is that while it is nice to enjoy subsidized rides at the moment, as a consumer you may suffer in the future due to Uber establishing a monopoly.
Even if Uber gained 100% share of car rides in an area, if they decided to exploit that by increasing their prices it would be relatively easy to create a competing company and undercut them.
Uber is basically a legal Ponzi scheme.
We shouldn't put bubble wrap around everything in the hopes that no one can ever do anything that might harm themselves. This kind of mindset restricts the freedom of everybody.
Anyway the point I was making is that the bagholders are the little people.