Capitalism only ever optimizes along the “maximum profitability for the seller” axis, and buyers only ever benefit if there is a ton of competition and it’s a low brand recognition domain (otherwise the profitavility optimization mostly just ends up influencing marketing, not price or quality) and only ever whilst said situation lasts (the profit optimization will also tend to end high-competition low brand recognition situations if possible as that’s not optimal for profitability).

Optimization is only a guaranteed good thing for those who benefit ftom what is deemed the optimal state or direction of improvement and in Capitalism that’s the ones taking the profits.