Here's another surprising example of Marvel Comics' progressive politics. Back in 1976, Marvel released this special one-shot comic book PSA in conjunction with Planned Parenthood. The comic was written by Ann Johnson (who doesn't appear to have any other comic book credits, but may have been an executive at Marvel, according to some sources), and features pencil art by Ross Andru with inks by Mike Esposito, coloring by Janice Cohen, and lettering by Joe Rosen. As for the plot...well, I'll just share this summary from the Marvel Wikia:
In a plot to gain a large crop of new child laborers for his home planet, The Prodigy, an alien in human disguise, attempts to convince teenagers to have unprotected sex. Using his power of vocal persuasion, which will convince teenagers to listen to his every command, the Prodigy denounces information about the risks and consequences of teen pregnancy and venerial (sic) disease.
Spider-Man steps in before the Prodigy's teenage victims can fall for his ploy, and stops The Prodigy from speaking by shooting webbing down his throat.
Yup. So that happened. I wonder if that's still in continuity, or if it was somehow erased when Spider-Man made that halfassed retcon deal with Mephisto?
You can check out the complete comic below, or download a PDF from the University of Nebraska Lincoln. I particularly enjoy the issues of gender and politics that are addressed on the last page, and the part where Spider-Man says "galloping guacamole" (which I am totally adopting as my new catchphrase).