If the users are not going to make use of a certain feature, and if it does not provide any aesthetic value, then it shouldn’t be included as a fill component.
That is,
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An un-noticeable detail in a sculpture or a painting would be valid.
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Similarly, an un-noticeable detail in a component’s aesthetic design would be valid.
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This is the UI design part.
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But additional details like listing enterprise offerings in a consumer oriented network service would be invalid.
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Similarly, providing details which a person is less likely to be interested in, or placing potentially interesting details in a place that a person is less likely to check out would be invalid too.
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This is the UX design part.