PS I inadvertently downvoted you, unfortunately there doesn't seem to be a way to upvote it back. Sorry...
Seriously, though, even in a rainstorm a taxi is a non-essential. It's nice, and I'd certainly prefer one if it's raining, but it isn't essential. There always exist alternate modes of transportation that are going to be less expensive (public transit, Zipcar, your own car, or an umbrella and your own two feet). It's not as though one, bereft of an affordable taxi, can never reach one's destination.
I just don't see how Uber can possibly be construed as an essential, except maybe in highly exceptional circumstances. You're hiring someone to chauffeur you to your destination with an expensive computing device, via a similarly expensive data connection. How is that anything but the definition of a non-essential, luxury good?
Willing to pay more means their time is worth more.
No, it may simply mean that money is worth less to them. A common reason for this is having a lot of it, and there are many possible reasons for someone to be wealthy; being socially productive is only one of many. They might have been born with it, they might simply be lucky, or they may be actively dishonest. None of which need any additional incentives.
You started your sentence with "No", and then literally stated the exact same thing in different words. Saying "a unit of their time is worth more of their money than the equivalent for person X" is exactly equivalent to "a unit of their money is worth less time than the equivalent for person X". The only difference between your statement and the statement you think you're disagreeing with is whether you choose to denominate "worth" in time or money: the end result however, is identical.
You're still not understanding what the point of my comment was. There's no platonic unit that we're comparing both time and money too such that one of them can change and the other doesn't; the "value" of time and money is relative to the other thing.
A person who has won the lottery _absolutely_ values their time more highly than they did before. Or are you suggesting that if someone was poor and then wins the lottery they'd be exactly as likely to take cabs vs a much slower/cheaper public transit route? Exactly as likely to hire house cleaners, or order delivery at the same frequency instead of cooking dinner? Valuing a unit of money less simply _means_ valuing time more; this isn't an empirical consequence, it's practically definitional. If a dollar means less to you because you have so much more $$, and an hour of your time means the same amount to you, _that literally mathematically means that an hour is worth more dollars to you_. This concept is so incredibly basic that I am actually running out of different ways to phrase it.
> And you went beyond saying that the individual values their time more, you implied that society should also value it more to encourage productivity.
What....the hell? Where did I say anything like this? My only contribution to this subthread was pointing out how you misunderstood the concept of two things being valued relative to each other. There was no commentary at all on whether society _should_ do anything (and any implication came purely from your imagination); in fact I personally happen to think that extremely high estate taxes are an excellent idea; chance, inheritance, and the fact that markets aren't perfect reflectors of value all do a pretty good job of decoupling wealth from any notion of "deserving-ness".
No, I'm saying their desire to take a cab wouldn't change. The fact that I can't afford to buy the Hope Diamond doesn't mean I value it at zero. Likewise, the fact that I can't afford to buy myself an extra ten minutes by getting a taxi doesn't mean that I place no value on those ten minutes.
> And you went beyond saying that the individual values their time more, you implied that society should also value it more to encourage productivity. What....the hell? Where did I say anything like this?
I think it was this bit, where you say wealthy people's time is worth more because they're more productive and we should encourage such productivity:
"Their time is worth more because they create more value per unit time than others. We want productive people to become even more productive, that's how the world gets better."
Even if all that is true, the most one can say if a rich person outbids a poor person for a good is that the transaction proceeded according to a principle that will tend to maximize human flourishing.
To say that it demonstrates that the other person needs it more, or values it more, is simply a category error.
That car stayed available for someone willing to pay more money. Between two people of roughly equal means, that's a good proxy for "needs it more." Between two people of vastly disparate means it's not.