I would like some opinions

[Page Jacobson]

I'm in a $11 sng table tourny, level 3, I'm on the button with 9 players still in. I have 650 in chips the sb is the chip leader with 1500. I'm dealt KK, everyone folds around to a LP player who goes all in with 150. The guy between us calls, I call, the sb calls and the bb folds. The flop comes 2c 3c 9h. Both players check it to me and I go all in. I want the straight and flush draws to be expensive. The sb folds and then gets all bent out of shape, because of my bet. His theory is if you have a player all in its better to keep everyone else in the hand in insure the all in guy has a better chance of being eliminated. I would agree with this if it were later in the tourny and we were down to 4 or 5 players. I'd like some opinions.