We’re raised by parents that must be obeyed for our own safety. Some people eventually learn to accept their parents are imperfect people and not gods. Many people do not. They look to kings and gods to protect and provide for them.

Those that have power negotiate with kings and gods. People without power attempt to use the only techniques they know to negotiate with their kings and gods: begging and/or pledging loyalty and service in exchange for scraps.

Of course this is but one of many reasons many people worship power.