Exactly! I think it's closely related to the idea of comparing yourself to others, and then projecting that onto others by assuming that everyone else is comparing themselves to you. Very low self-esteem can make you feel incredibly unimportant, and the most important person in the world, at the same time!
I mean, unfortunately, in this reality, comparison is inevitable, everyone
is constantly comparing themselves to you or others (or being compared to someone else without their knowledge, by others), and sometimes to make them feel better about themselves, which even an "insignificant" person could be used for the purpose of.
These can be quick judgements by a stranger or drawn out ruminations.
Clouding your own vision will not change this.
I also disagree with the whole sentiment about "selfishness/self-importance/narcissism" being some flip side or the core cause of an individual experiencing worry/anxiety/vigilance around other people.
That sounds eerily similar to some psychobabble "the blame is on you!" bullshit, it reminds me of the language and techniques used in cognitive behavioral therapy.
I know why I, personally, have to worry about the thoughts and actions of others during my interactions or general forced presence in the public eye, and it has nothing to do with thinking highly of myself and everything to do with wanting to remain informed and alert-to avoid further trauma that I have already experienced enough times in my life.
Low self-esteem is usually the result of already having been compared negatively to others time and time again, marked as "less than", unseen, or seen only to disregard as a source of "thank god I'm not them".
No projection necessary.
There is nothing wrong with wanting to be noticed when you're not (which doesn't apply to this scenario), nor is there anything wrong with rightfully expecting to be noticed for the wrong reasons, or for history to continue to repeat itself, especially when no relevant life factors have changed.
If wanting to shield and protect myself from further harm or diminishment, in the absence of any outsider ever being willing to afford me the same, is to be considered "selfish" or any adjective of that nature, then so be it, but I find that entire notion to be patently ridiculous in the context of which it is being spoken.
Sometimes we are the only ones who give a damn about ourselves, and so all compassion and protective measures have to be focused inwards, you can only put out what was put in.
This is not to be confused with any genuine sense of egotism.