The way the phrase is thrown about is unmistakably negative IMO. For a start, 'inequality' is a phrase borrowed from far clearer grievances such as inequality

The way the phrase is thrown about is unmistakably negative IMO. For a start, 'inequality' is a phrase borrowed from far clearer grievances such as inequality in legal rights for women, minorities etc. By using it in this economic debate it already frames the question as one of harm to a group of people. A neutral phrase would be something like 'wealth concentration.'