The difference is most people aren't providing their labour with a pricing model this dynamic.
If I look for Ubers and one is offering rides for 50p I'd take it, because the result should be the same as anyone else offering something more expensive and I have no relationship with my Uber driver.
If a gardener stats to offer gardening services for 50p an hour I wouldn't go with that, because I have a relationship with my existing gardener and I'm suspicious how quality someone can be for 50p an hour.
I see your point. It sounds as if you agree that in Uber's case, flexible pricing is appropriate. Or do you think that Uber should price its cabs flexibly but pay a flat rate to its drivers?
If I look for Ubers and one is offering rides for 50p I'd take it, because the result should be the same as anyone else offering something more expensive and I have no relationship with my Uber driver.
If a gardener stats to offer gardening services for 50p an hour I wouldn't go with that, because I have a relationship with my existing gardener and I'm suspicious how quality someone can be for 50p an hour.
See the practical difference?