Yeah, that's a very good point to bring up. Those post-Clone Saga stories with Norman were him just rubbing it in Peter's and Mary Jane's faces that he'd already taken so much from them both, and because of his repositioning himself as a respectable member of legitimate society, they couldn't do anything to touch him unless they wanted him to take even more from them by exposing Peter's identity. The sheer impunity Osborn was reveling in at that time . . . pretty chilling.