We're 'selfless'

It is said that people are generally selfish. But the question is if they are selfish, why do some of them prefer not spending more time thinking about their own state of mind instead of forming opinions about the non-self before realizing based on what grounds, effected by what influence or using which kind of methods their views are conceived and are of what nature. I've heard people repeating to me their life stories again and again without any alteration, which indicates before telling me, they haven't reviewed their own past for their own sake, the very reliable resources more than any words printed on the paper, which is, for me, completely 'selfless', because I suppose the time we spend using our brains are precious, the time we spend reflecting and the attention we gather to understand an object, a topic or a person gives them values. For me, amongst the cruelest things one can do to another person includes neglecting, treating someone as invisible, not wasting a single second  to drop a though on another person. Out of politesse, you may have all the morning!'s,  Salut!'s or Morgan!'s that you want but you do not even sense the curiosity or desire to understand them. So why are so many of us treating ourselves that way? [...]