The dangers of aspiring to be a perfect person

Be it a healthy person regarding fitness, eating habits. Being it a time-efficient hustler, and productive person. Or be it minimalist, aspiring to consume less and aspire to have only long-lasting high-quality items. To the spiritual or person of faith that preaches their belief without request. There is something about these people that isn't quite right. Something about somebody that labels themselves as (insert aspiration here), that rubs me the wrong way and that is they are generally speaking assholes.