Roger Corman's was never going to see the light of day so it literally didn't matter what they did for Doom. The film was never supposed to be released and the only reason it was is because an illegal copy surfaced and has circulated ever since. Point being is that it didn't matter what they did for Doom, the production only happened to hold onto the rights. The same argument can be made for practically everything about that production. Doom's first foray onto the silver screen was never supposed to even materialize.
Tim Story's Doctor Doom was built in the same way Green Goblin was because Spider-man had at that point just happened. Audiences mocked Green Goblin for resembling a Power Rangers villain and it was decided that he wouldn't be in costume for most of the film. As such he also gained the company angle because it allowed the production crew to provide an origin and motivation for both the Four and Doom. This is of course kind of changed in RoTSS but he's not even the big bad of that film because they wanted to use Galactus.
Josh Trank's Doctor Doom was never supposed to be in the film as the production was aiming more at Galactus and of all things, Mole man. Now Doom was in some scripts but like Venom in Spider-man 3, he wasn't even supposed to be. The film wasn't built for Doom and even in the script he was in before shooting, it was never even him to begin with. When it came to the actual shooting and the absolute disaster that was Fant4stick any good will that was in Doom's scenes ultimately got removed as the studio tried to save the film.
Doom is also not the reason any of these attempts didn't work.
-Roger Corman's was never supposed to be released
-Tim Story ironically had no story to speak of and when it did it failed because Doom was barely Doom in it or Space-cloud Galactus. Spider-man was also heavily influencing these films due to it being the breakout success at the time and it just didn't gel.
-Josh Trank was a disaster from start to finish that was flippant throughout production about what it even wanted to do.
At worst you could argue that the portrayal wasn't great but Doom was either never meant for the production and added last minute or the film was never supposed to be seen in the first place.