Question: Undeniably, graciousness differs from money! Graciousness is a behaviour and quality, whilst money is a physical a medium of exchange, a unit of account, and a store of value.

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> [gratuity (n.)](https://www.etymonline.com/word/gratuity#etymonline_v_11931 "Origin and meaning of gratuity")
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> 1520s, "graciousness," from French *gratuité* (14c.) or directly from Medieval Latin *gratuitatem* (nominative *gratuitas*) "free gift," probably from Latin *gratuitus* "done without pay, spontaneous, voluntary," from *gratus* "pleasing, agreeable," from *gratia* "favor" (from suffixed form of PIE root *\*gwere-* (2) "to favor"). Meaning "money given for favor or services" is first attested 1530s.
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Answer: 
In this sentence, both "amitié" and "estime" are "curieuse". We know that precisely because "curieuses" is in the plural form.

Compare :

* Roland avait pour lui une estime et une amitié curieuses.
* Roland avait pour lui une estime et une amitié curieuse.
* Roland avait pour lui une amitié et une estime curieuse.

Here, we understand than only one of the term is "curieux".

Note that the last two sentences are formally correct, but not natural. They should be rewritten :

* Roland avait de l'estime pour lui, et une curieuse amitié.
* Roland éprouvait de l'amitié pour lui, et une curieuse estime.

The original sentence is quite elegant.
It is indeed both correct and weird for native speakers. It's even weirder when an adjective qualifies two nouns from a different genre, a masculine and a feminine:

*Julie porte un T-shirt et une jupe neufs.*

Here the adjective "neuf" has to be at the masculine form because in grammar masculine always wins, but it sounds very weird when it comes right after the feminine noun!

So generally we will try to change the word order to *Julie porte une jupe et un T-shirt neufs.* to make it sound a bit better...

Many natives would make the mistake to write *Julie porte un T-shirt et une jupe neuves.* They considered changing the rule, but it hasn't changed so far.