At the company I work for we actually make and sell products on Amazon. We ask for reviews for 2 reasons: 1. Star rating = sales. Pretty simple. 2. We compile customer complaints and try to resolve them. Our sales team goes through all of the negative reviews and tells the production team, fix this, and we actually fix it (if possible).
Our company is only about 100-120 people. The CEO/owner actually does work and is involved instead of just watching and looking at numbers so it’s definitely not your typical corporation.