Interesting view. IMHO your approach also maximizes 'productivity' as the output of your approach is a 'product' which has high utility to you but may not have

Interesting view. IMHO your approach also maximizes 'productivity' as the output of your approach is a 'product' which has high utility to you but may not have same utility to others. If the utility it generates for you gives you more fulfilment than the utility which 'productivity' in traditional sense does so be it.