I have always been a bit confused by this. I can understand why a deity would want and demand respect. I can similarly understand why a deity would want and demand loyalty. I can understand why a deity would want and demand obedience. These are things that we, as humans, can easily understand, especially if you have children.
What I don't understand is the deity's desire and demand to be worshipped. Why would he need for his creations to make sacrifices to him and to sing praises to him and to tell him what a wonderful father he is? I appreciate it when my kids tell me that they love me but I could never envision myself telling them that every Wednesday I demand that they sing praises to me. I would hope that they would shower me with adoration because they wanted to, not because I told them to or I would set them all on fire. There are ways that my own children can show that they love me without their bowing down and kissing my hand as they walked through the front door in some sort of ritual.