Some speculate that Gerry Conway may have borrowed some concepts from the science fiction short story "The Mindworm" written by American writer Cyril M. Kornbluth, first published in 1950. It combines the themes of mutant power, telepathy and ancient superstition.
I haven't read it but seems to have some similarities.
https://en.wikipedia.org/wiki/The_Mindworm
The protagonist, the Mindworm of the title, is an orphan, the result of a liaison between a U.S. Navy lieutenant and a nurse aboard ship during viewing of early atomic tests. He is a mutant, as a result of the atomic fallout after the testing, and he can "hear" the thoughts of others around him.
Cast out into the world as a young adult, he is about to be attacked by hoboes when he discovers an ability to feed off strong emotions, killing one of his assailants in the process. He uses this to eliminate the rest of his attackers. He moves from town to town, eavesdropping on the thoughts of people around him, and using his abilities to induce the intense emotion he craves, and to gain material wealth.