Originally Posted by Abdula
Exactly, and Urahara said that the "natural" order of things would be for the hole to appear first and then the mask but with Vaizards the mask appears first. I would agree that the other people that got infected with whatever the hell this was probably just couldn't control their inner hollow and so just became hollows.
This is exactly the same thing that happened to Ichigo and that Kido guy wanted to destroy him but Urahara stopped him. I think the only difference is that Ichigo was very weak at that point so he was easily able to gain control but these guys are all experienced shinigami's of VC level or higher so naturally they would be alot more powerful and it would take them longer to gain control and break their masks like Ichigo did.