When we add to an avocado a pinch of salt, a sprinkle of paprika, and a spot of lemon, we're distorting it. It is no longer that pure, green, fresh-cut perfection.
But it tastes better.
I wonder if the same applies to audio. We're all so ingrained with the notion that distortion is an ugly word. That doing anything outside the realm of purity is a sin.
And yet we are alright with manipulating the frequency response curves of loudspeakers as long as it falls within the accepted parameters of the practical.
There are no perfect amps or speakers. None are truly pure.
I see no harm in adding a bit of spice here and there if it makes it sound better.