You need to think deeper than superficially. Orochimaru himself is only driven by the wish to learn every jutsu (his idea of being the strongest and most powerful), but that might not be enough for others. When he's looking for tools to use, they should have strong motivation to do what needs to be done. Oro is also a manipulator; he doesn't need absolute control over others as long as they do what he wants, more or less. That is also evident by the fact he let Anko live.Originally posted by: poopdeville
... and Orochimaru's speech to Anko about her lacking the will to power. I could see him saying that, but he doesn't seem like the sort of person who would then talk about 'vengeance' and 'hate'. When did he turn in to Uchiha Itachi?
So, I doubt Oro personally has that much use for revenge, hate and such (although he certainly hated the Third), but such simple feelings could be perfect in his servants - just like Sasuke proved.