Gendou is just misunderstood!
consider: he is very unselfish because:

If he had told Shinji about the destiny that awaited him, this wouldve
influenced humanities path the way he wanted it to. imagine this:

G: Hey Shinji, I am proud of you, I am about to tell you the destiny of
yourself and the secrets of unit one, and what you must do.

S: -_- <he is proud of me?>

so basically he couldve manipulated Shinji into choosing either evolution or
destruction, but he didn't!
he's misunderstood.
Just like PenPen (poor little Bugger)

SAM