To be fair to Romero, he could actually program, make games, and design levels. It's really hard for me to accept the claim that he contributed nothing to id:
>He designed most of the first episode of Doom, most of the levels in Quake, half the levels in the Commander Keen, Wolfenstein 3D;Spear of Destiny. He wrote many of the tools used at id Software to create their games, including DoomEd (level editor), QuakeEd (level editor), DM (for deathmatch launching), DWANGO client (to connect the game to DWANGO's servers), TED5 (level editor for the Commander Keen series, Wolfenstein 3D; Spear of Destiny), IGRAB (for grabbing assets and putting them in WAD files), the installers for all the games up to and including Quake, the SETUP program used to configure the games, and several others.
He might have made some really poor decisions, but the guy has legitimately been developing games for 30 years. Just look at how many projects he has been involved in: http://en.wikipedia.org/wiki/John_Romero#Games
Somehow I came out of Masters of Doom with a lot less negative opinion of Romero than others did. Carmack, while clearly a genius, actually seemed like a real jerk at points.