Quick, what do nearly all of Spider-Man's adversaries have in common? If you said "an unhealthy fascination with a certain teenage boy," that's a completely different article.
No, it's that the vast majority of them were created thanks to science. Green Goblin sports the technologically advanced suit and glider, Doc Ock scienced himself some new murder-arms, and The Lizard was the result of a genetic biologist's experiment to regrow missing limbs gone wrong. And this phenomenon isn't limited to Spider-Man -- catastrophic failure with horrifying consequences seems to be a core scientific tenet of every comic book world. We're not sure how every elementary school science fair doesn't become the origin story of Baking Soda Volcano Girl.
It's important to note that it's not just the bad guys tinkering on the scary side of science. Tony Stark and Bruce Banner create artificial intelligence in, like, an afternoon, which almost results in Earth's destruction. And after being bitten by a spider that can bestow god-like powers on ordinary humans, Peter Parker does the responsible thing by telling exactly no one, despite the obvious scientific and ethical implications. It's only a matter of time before someone else who isn't bound to fight crime by the memory of their dead uncle joins the ranks of the spider-endowed and uses his wall-climbing abilities to become the world's most prolific peeping Tom.