Why people are becoming more materialistic?

first of all we should understand the meaning of SELFISH. 'slefishness', i think comes from the person's point of view..... saying that someone is selfish does not make him a selfish being...isn't it? to come to the question... i would like to say that it si not people who are becoming more selfish...it is us who's point of views(perspectives) are changing. people have evolved with time and so did their thoughts, we want at any cost to name everythng,qualify each being. we should take some time out and think if ever it is not our way of thinking that is changing. are we not viewing life form the wrong end of the telescope....