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 can be surprising because usually, you see the more common construct with an adjective and a noun both plural, and it can be counter-intuitive (or 'uncomfortable') even for native speakers.  

But this is the way to go, as *curieuses* qualifies both *une estime* et *une amitié* and as this nominal group is plural (there are 2 elements), the adjective must be plural.

If we replace *une estime et une amitié* with *sentiments*, it sounds more familiar: *Roland avait pour lui des sentiments curieux*.