It seems as though people subjectively call themselves "unselfish" to give themselves a sense of superiority over those they've subjectively deemed "selfish". People tend to call others "selfish" as means of a politically correct curse word. You are within the capable realm of calling anyone other than yourself "selfish", because you can, and are also within the realm to call yourself but no one else "selfless", because you can.
"1. devoted to or caring only for oneself; concerned primarily with one's own interests, benefits, welfare, etc., regardless of others.
2. characterized by or manifesting concern or care only for oneself: selfish motives."
"not selfish; disinterested; generous; altruistic."

The thing with this is how there is no middle grounds. In comparison to some people, I will not be generous to them, but I will be generous to others. I'd give something to Person A, and they'd call me "unselfish", but Person B can go ******** themselves, and they can consider me "selfish" until they turn blue in the face. I do things with little concern for the vast amount of jackasses on this site, therefore I am concerned with my interests with no concern of theirs. However, I also do things for concern of a small collective, which means I'm not "selfish" to them. Of course, this also means that those not concerned with people's "welfare" may be called conservatives. Whoops, lol.

Of course, that brings in this definition:
"having little or no concern for oneself, especially with regard to fame, position, money, etc.; unselfish."

It is seemingly not the same definition, although it looks like it. I have little regard for any of that. You could even take in certain ideas of Communism which have so little concern in regards to money that they want it destroyed. Many people flaunt their career in people's faces, saying they're an "employer of a small business" and that their opinion should be taken more seriously than someone without a job, which makes their "position" a major concern to them.

I still despise the use of these words. At the end of the day, maybe we could dance a little more, and the lights will flicker the undying message that objectivity is more important than what it isn't. Until then, salutations, my lovelies.