No. Humanity is not gone, they just change. If we see in histories people work for the good of all, they are motivated and eager to do every thing to make things better not just for them but for the good of every body. But know as we see, people just don't care about other people, they just think about themselves and no other but themselves only. They don't  care if they steps on other people as long as it brings them to their own success.