Why do we lack critical thinking?

As a Female avid learner, who is continuously seeking knowledge to improve myself I find myself lacking company of critical thinkers around me. I have lost so many people as I grow more and more aware of my own self. I am not judging anyone but I am judging my own self by wondering how and why was I ever impressed by people consumed by material and worldly desires? I am sure so many of you can relate but there might be the ones who wont even understand what I am talking about. The kind of critical thinking I am talking about is self analysis all the time “Tadabbur” the kind that the prophet SAWW practiced before Islam in Cave of Hira he would sit there and think about the wrongs of this world and how he can save himself from that. Let me know your experience on how people reacted towards you once you started viewing the world critically and started living with the purpose of greatness? Also how did you know you were not meant for material and other life hindrances?