Self abasement is still a humblebrag, and thus can't remedy arrogance. I don't understand this application of self-abasement to the case of rich people talking

Self abasement is still a humblebrag, and thus can't remedy arrogance. I don't understand this application of self-abasement to the case of rich people talking about the days when they were poor. If it is self abasement, then that implies that being poor is some type of wrong. But it clearly isn't, particularly when at the start of a journey.