And the survivor bias. Do you really think there were no other folks doing design work back then? Remember, the claim is that design as a whole was more instrumental in social change and whatnot.

For that to be true, every other person doing design back then would have had to have been just as political.

Fair enough, I can't win that one given the huge amount of material produced in commercial print over the last century.

A few more survivors: John Gutmann, Tom Harrison, Humphrey Spender, Lee Miller.