This is where the translation to an individual’s perspective gets more interesting. There are two ways of looking at neglectedness with regards to individuals:
If nobody is giving certain work or a certain job that is both important and tractable, then that qualifies as attention neglect. Working on such a problem would rank high on an optimization scale.
Work that fits this description would be in supply to some degree, and yet be in low demand. So sometimes markets are able to correct for this attention neglect, but not all work of this kind has a good market environment.
Maybe you think you can do something better than most other people. That’s fair, but the more demand there is for certain work (e.g. competing with many other for a job) the less confident you must be with that belief.