Set in the DC Comics universe, Powerless is a workplace comedy set at Wayne Security, run by Van Wayne, dim-bulb cousin of billionaire crimefighter Bruce Wayne. Van is angling for a job closer to Bruce at mothership company Wayne Enterprises in Gotham. EP Justin Halpern likened it to the Rockefellers and all the hangers-on relatives they’d employed, or how “You’ve got Trump and then you’ve got the idiot sons.” “Is that a secret?” he asked, when some onstage gasped, as did…