The Perception of Society

In Arendt's chapter on Body and soul; soul and mind she says "In addition to the urge toward self display by which living things fit themselves into a world of appearances, men also present themselves in deed and word and thus indicate how they wish to appear, what in their opinion is fit to be seen and what is not." I feel like everyone since the beginning of time has done this. It's like our mind only wants to satisfy what the rest of society perceives as 'right'. We will change what we want to be what everyone else wants, and even then, it's not good enough for the perception of society. Why is our mind set to care about what others think? Or is that our soul?