Hardly any cats are affected by music, but these are; when I sing they go reverently away, showing how deeply they feel it.

Sour Mash never cared for these things.
She had many noble qualities, but at bottom she was not refined, and cared little or nothing for theology and the arts.
It is a pity to say it, but these cats are not above the grade of human beings, for I know by certain signs that they are not sincere in their exhibitions of emotion, but exhibit them merely to show off and attract attention--conduct which is distinctly human, yet with a difference: they do not know enough to conceal their desire to show off, but the grown human being does.

What is ambition?
It is only the desire to be conspicuous.

The desire for fame is only the desire to be continuously conspicuous and attract attention and be talked about.
These cats are like human beings in another way: when Ashes began to work his fictitious emotions, and show off, the other members of the firm followed suit, in order to be in the fashion.

That is the way with human beings; they are afraid to be outside; whatever the fashion happens to be, they conform to it, whether it be a pleasant fashion or the reverse, they lacking the courage to ignore it and go their own way.
All human beings would like to dress in loose and comfortable and highly colored and showy garments, and they had their desire until a century ago, when a king, or some other influential ass, introduced sombre hues and discomfort and ugly designs into masculine clothing.