That's not exactly how that played out. Beth did, in fact, ask Randall to step down from the race for City Councilman because she and his campaign manager deemed the race unwinnable. She hasn't always been the unending, uncomplaining, long-suffering wife she's being portrayed as in many of the comments here.
Also, Randall didn't "let" Beth do anything. She's an adult.
#TeamRandallAllTheWay