Why is Dr.Doom still so minor even after all he's done lately.

Dr.Doom is one of if not my favorite super-villian and i know marvel tries to promote how big of a threat he is whenever they can, they still undermine him to an even worse extent because despite some of the latest things he's done it still seems like he will never really accomplish anything plus somehow it seem they might be trying to make him a good guy after the latest in FF & fantastic four be Marvel Now.

Accomplishment-Killed a watcher and was upgraded by the marquis of death, control over all mystically powered vibranium(plus during this was proved that doom world is the only way andthat is what he truely believes), lastly & most important survived a full on assault by 5 mad celestials