The story in Ozymandias is incredibly weak. It's the backstory of Veidt expanded to feature length. Confirms Rohrschach's "possibly homosexual" comment and then three pages later contradicts it. Veidt's new lady-friend (they met at the Gunga Diner, of course) gets mixed up in drugs at Moloch's club and dies (only four pages later), Veidt becomes Ozymandias to get revenge.
Just to be clear: the richest man in the world EVENTUALLY kills Moloch twenty years later SUPPOSEDLY as part of a conspiracy to make the world a better place, but it was actually just revenge for drugging his girlfriend.
And Len Wein wonders why Moore wanted to leave this alone.
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"The trouble with being a ghost writer or artist is that you must remain anonymous without credit.
If one wants the credit, one has to cease being a ghost and become a leader or innovator." — Bob Kane