The mentor is comparing people without technical skills (specifically HR employees) to the fictional Eloi - the species of humans which "live a banal life of ease". Meanwhile he compares those with technical skills (presumably himself included) to that of the Morlocks, which is a species engaged in Important Work that supports the idle Eloi.

Is the condescension and self-importance more clear now? It's an Us versus Them mentality which patronizes other people and looks down on their work.