well, I believe with thorough brushing it would equal with worn, and since it is applied on all your jacket surface uniformly... your jacket couldn't develop creases and fade pattern as the most memorable characteristic of leather jacket...
if you have a new sheet of paper and you crumpled it, creases will form because they are stiff, and so the parts that lose their stiffness first become creases, but the same paper after you rub it against each other or brush it meticulously until really soft throughout then it would be limp like fabric, it won't hold any creases.
I have this raw jeans from 20yrs ago that started its life as a heavy crunchy dark blue that jeans is totally white now and incredibly soft since it has been washed so many times, really thick yet comfy, I feel great in it, but it doesn't look like jeans anymore, just a thick cotton pants, I use it as pajama.
if you have a new sheet of paper and you crumpled it, creases will form because they are stiff, and so the parts that lose their stiffness first become creases, but the same paper after you rub it against each other or brush it meticulously until really soft throughout then it would be limp like fabric, it won't hold any creases.
I have this raw jeans from 20yrs ago that started its life as a heavy crunchy dark blue that jeans is totally white now and incredibly soft since it has been washed so many times, really thick yet comfy, I feel great in it, but it doesn't look like jeans anymore, just a thick cotton pants, I use it as pajama.