What you say is true in a lot of people, that there are those who want to be in power over others, but that's not the central issue. In most cases where someone is in advantage over another it's due more to competition than to pure desire to have domination over someone. The issue is more the perceived playing field that they are competing on...the 'evil banker' is considering themselves a better competitor in the playing field they see. They feel justified. Perceived survival in competition is a base level drive for everyone, some, not the majority, just take some known damaging actions as they claw their way to the top in trying to keep from getting behind everyone else clawing along side you.
It's not quite as bleak as you make out that all humanity currently desires to lord power over others....there's a more basic drive that will either adjust on it's own or need to be adjusted on purpose: the perceived playing field will need to get brought into some kind of shared image instead of individual one-off version for everyone.
As far as the minimum wage jobs and similar, I see technology helping get the most out of each person. Right now lots of people work jobs that do not use their full potential, i.e. could be performed by part of a person , not needing 100% of a person. but they have to put a lot of their resources into doing less than 100% most of the time. Basically wasted talents because the role can currently only be performed by a person since we lack the technology to cover the gap...the gap between what technology can do (what % of a person it can replace) and the number of jobs that only need that % of a person...labor jobs use say 15-20 % of a persons focus and ability and technology is somewhat able to cover that...under certain circumstances. Once technology can fill the place of say 80-90 % of what a person can do (talking averages unfortunately, which is always misleading when talking people) then we can drop technology in place for most of the menial jobs out there , ranging for those that take 15-20% up to that 90% which will cover much more of the jobs needed to keep a society/city/nation/whatever running. The we'll have a whole new playing field and will see if our abilities then go up or if it just frees us up to do other things. But, it will happen over a LONG period of time and won't have the catastrophic impact that many envision...