If nobody cares about the businesses at the other end then one day you'll wake up to find that the only business left on the other side is Google, and then where will you turn?
Roper: So now you'd give the Devil benefit of law!
More: Yes. What would you do? Cut a great road through
the law to get after the Devil?
Roper: I'd cut down every law in England to do that!
More: Oh? And when the last law was down, and the Devil
turned round on you — where would you hide, Roper, the
laws all being flat? This country's planted thick with
laws from coast to coast — man's laws, not God's — and
if you cut them down — and you're just the man to do
it — d'you really think you could stand upright in the
winds that would blow then? Yes, I'd give the Devil
benefit of law, for my own safety's sake.[0]
Uber is probably also a threat to the public(apparently the people who run Uber are not very nice, remember all the scandals?) but people are so fed up with the taxi industry that they welcoming Uber to "slaughter" their local cabbies.
It's just business and that's why we don't live in a libertarian world and we have government bodies that regulate businesses.