How I Freed My Mind From The Cult of Materialism

I wouldn't underestimate  our ability  to contrive some form of power based competition.
Hell, some of us apparently are still fixated on skin pigmentation.

Agreed.  I just can't think of a good example.

Say there are two worlds, identical in every way.  There is nothing on World Beta that isn't also on/available on World Alpha.  People on both planets have access to unlimited energy and the same technology and the same levels of natural resources.  Everything is in abundance if you will.

What would ever prompt people on Alpha (or Beta) to vie for power over other humans or other worlds?

I'm sure someone can come up with something.  I just struggle with the word "power" in a world of near complete abundance.