Sorry folks, you are stretching pretty far to find warlock icons. Not that their aren't, but most of them are recent inventions and are highly debatable. Just note your own language, "maybe", "somewhat" "like" etc.

I mean come on, Iron Man as a warlock? Not even close. He's an artificer. He does not use magic, he uses intelligence and technology to build things to help him out. No other world entity gives him any abilities other than if you argue "God" gave him his intelligence.

Another way to look at it, if "warlock" was a classic trope etc, then they wouldn't be a recent addition to role playing games. And they are recent. They were created during the explosion of crunch and the need to publish something new we were flooded with a few decades ago. Sure they draw their inspiration from old myths and folklore about demon/fey pacts, but those stories are often more about the dangers of such etc.

Anyway, none of that invalidates the value of warlocks, but no one should pretend they are as classically central to RPGs or human storytelling as warriors, priests, rogues, bards and even monks.