[ary]

This is not entirely true. The poor may value their time like anyone else, but they often have a very different grasp on the time/money tradeoff. Not having money warps the value of time since (for the poor) lack of money is acute and how much time they have is abstract.

Anyone who has grown up poor or known those who are poor has seen this in action. People will go to great lengths to not spend small amounts of money to the point that working for minimum wage would take less time to cover the expense.

[aionaiodfgnio]

By "poor", I actually meant "not stupendously wealthy". This includes the merely rich.

A doctor or plumber or engineer or cashier knows how to translate their time into quality of life. A wealthy person cannot possibly do this. They don't know what their time is worth in money, and money doesn't change their quality of life.

[PaulHoule]

My classic example is if you go to a crafts store you will find 200 different skeins of acrylic yarn and one of wool. It takes 20 hours to knit a scarf with either, it will come out much nicer than wool, people really must not value their time very much.

[nerdponx]

This is a good point, and (charitably) this might be what the original author was trying to describe. If you are used to something being particularly scarce or valuable, you might continue to overvalue it on the margin even when it becomes less scarce.