I think most people are narcissists
People never do nice things because they feel it's the right thing to do, they do it to prove to the world what great people they are and make themselves feel better so they can pat themselves on the ass.
They always find a way to make everything about them. They're always huge on celebrating birthdays and holidays and insist on making a huge deal out of them, but always have to find a way to make it about them.
They're always bragging about how great they are and comparing themselves to others, talking about how much better they are in every way.
Everything is style over substance. The default philosophy of human beings is "We want to look like we care even though we really don't". They want the ass kissing and worship the fake caring personality brings.