Damn peep freak. He stay on some weirdo shyt. Why is that waste of breath still alive?
He is probably the most useful person in all of Alexandrea, even moreso than the doctor.
The doctor is an expert in a single field (medicine)... while Eugene is overseeing their entire agriculture program, engineering, repairing and maintaining various equipment... All of the supply runs they are doing are planned by him by the way.
Anybody there can pick up a gun... but nobody knows the first thing about building an aquaduct or filtrating the water once they have it... or how to distill ethanol for fuel... etc
He is invaluable, they just don't spend much time showing his contrabutions cause they make for boring tv.
They are downplaying it for comedy but a few eps back they even show him instructing Darryl and Rick on where to go on there supply run and what to bring back. If you recall, way back when dude from everybody hates chris was still alive... Eugene was leading a supply run with Glenn to retrieve a part for the solar panels which he realized they needed, tracked down, retrieved, and later installed. He is the reason they continue to have water and power... and likely gas also... and a large reason they have some renewable food cause Maggie (the farmer's daughter) aint growing shyt.
He is a weirdo but he is arguably the most valuable person there by a huge margin.