Do you ever watch TV documentaries cassuk? Most mammalian groups have alpha males and females. It's a survival technique, the strongest males protect the group and father the strongest young. Looking up to celebrities is a spin off from that.
If by worshipping themselves you mean making themselves happy instead of feeling that they are disgusting debased sinners in need of redemption then I am all for it. Psychologists realise now that we need to look after ourselves first, then our families, then our friends and work colleagues and then give to charity or do voluntary work if we have any resources left.
Religions that tell us to put ourselves last have severely damaged our mental health.