Solving the "elf superiority problem"

[noob]

Since adventurers are some sort of odd phenomenon is it in theory possible to give adventurer powers to someone?
Or are adventurers people possessed by fire spirits or something?
Is it possible to exorcise the adventurer quality out of someone?
Also if a lich never had the idea to do searches about its opponents before becoming a lich is it unable to get that idea for all of its nonlife(likewise for the idea of getting an advisor)?
It would be hilarious to see a poor lich who literally can not get the idea to recruit an advisor and which is struggling with managing the kingdom it conquered after becoming a lich.
Anyway the lore rework makes becoming a lich no longer be an as much interesting prospect: before it was mostly breaking your spirit and making an hole in it (in your previous fluff) which loses anima constantly now the mix have a dangerous element which is a being of entropy and thus probably a quite lethal thing to work with.
It would not surprise me if half of the people trying to become liches just dies.