Finding himself in a universe run by gangs and warlords, the Electric Skull started out as crooked accountant, then worked his way up. His own crew, Sectorgang, Inc, stomps heads the old fashioned way -- he buys them out. He now owns half the known universe.
Word is the Skull is a mid-level hood from an alternate future who wandered through a wormhole into the past in order to take over the universe. Either that, or he's a failed novelist. Our informant was foggy on the details.