There's a lot of intersection between the studies of necromancy, youth rejuvenation, cheating death and medicine.
I'm pretty sure as middle aged wizards seek cures for death and become old, venerable and ultimately geriatric wizards, they start looking to necromantic options with the hopes of finding a way to resurrect themselves.
It's led me to wonder if there's a post-mortem psychosis that drives them away from their research and towards world conquest and catastrophic accelerationism .
Longevity magic is difficult intricate work, and as I might have to resort to going lich or vampire as a temporary measure, I hope to find a remedy for the psychosis problem as I construct my ~~horcruxes~~ life vessels, especially if we're able to develop true AGI before I die.