Well, there might need to be an equal and opposite reaction in order to keep it in check. If some people are just inherently evil and desire power over others, then I imagine there would also be inherently good people and desire to protect others.
I don't think you can "prevent" this outright. That's why there's talk of "vigilance" and being "watchful" when it comes to government/democracy.
Hmmm.. idk if "establishing a mindset in people" is viable tho. That kinda sounds like "make them think a certain way". I'm reminded of the adage you can lead a horse to water but you can't make it drink you know?