It's a shame people try and see 'agendas', particularly if the BBC are involved. HG Wells was a socialist, so if there is anything, it's just reflecting the author.
Finally made a start on my Blake's 7 boxset (3 episodes down, 49 to go, never seen Mrs K look more depressed
). No doubt that would be dismissed as lefty socialist claptrap these days, with freedom fighters against the system. In 1978 it was just entertainment with wobbly sets as a bonus, nobody asked or looked for anything more.