I wouldn’t call Jameson underappreciated. He’s as much an impediment to Peter as his is a benefit.

Sure, he won’t hand his golden photographer over to the Goblin, even with a knife at his throat, and that’s noble, but he also doesn’t pay Peter shit, is partly responsible for the creation of at least two of Spidey’s rogues, and actively turns the city against him with an unrelenting campaign of libel and hate.

He’s chaotic neutral at best.