One reason why we need to show our true colors & just express our honest self whenever there's a chance is to help each other out. Under the premise that we are all constantly learning about life using the feed and experiences from each other, being pretentious and untruthful send wrong signals, yield bad data. These so-to-speak fabricated feed can compound to an errorneous interpretation of life down the road, a major shitstorm in general. So just be yourself, help people understand life correctly.
The universe will take care of the rest.