1. Amazon builds the service such that brands loose their power. All the negative psych/social phenomena of brand culture are gone, and with it, btw , all the ads.
2. High security + physical on and off switch make for an improved privacy situation , especially if you consider the current state of webcams.
3. Amazon builds the style consulting service as a positive service, consulting with feminists and psychologists, not using dark patterns, but to the opposite, using empowerment regarding bodies, etc.
This may also building a fashion social network focused on positive feeling, maybe by limiting to the close social circle, or something else, because the goal here isn't attention, like facebook.
4. That service would be good, it would really help women look their best.
5. Clothes become more affordable.
Now, if Amazon could do all of this, it would be really great for their business, so why wouldn't they try ?