Okay I just thought

What if Aziraphale invented the wheel

It was literally his only obvious, lasting contribution to humanity (got him a commendation upstairs)

He left it with the humans for a while

And then years later, Crowley comes driving up in his shiny new car

And he’s like “OMG ANGEL LOOK WHAT THE HUMANS MADE IT’S GREAT”

and Aziraphale is like because he invented something that eventually led to the creation of Crowley’s favoritest thing in the world (besides him)

Of course his well-intentioned contribution came back to bite him once he got in the car and realised what a literal speed demon Crowley is