If you think she only did it for the money, you haven't even 'scratched the surface'. [=there are many other factors, reasons, etc., involved]
Despite the 'surface' differences between the two candidates, they are very similar in most ways.
The tension between them is beginning to 'rise to the surface'. [=it is becoming easy to see]
(..) In hours this ship has to be launched. Geordi, the ship was damaged in the attack. Get a repair crew down here. I'm on my way. Alpha team, we're heading down to the surface. Porter, take command while I'm gone. Check out the environmental controls. It's a little warm in here. Isn't it amazing? (..)1996 Star Trek: First Contact
(..) That makes sense. Most of the major cities have been destroyed. - million dead. No resistance. - Captain. Mr Worf, quantum torpedoes. Fire. They were firing at the surface. Location? Western hemisphere. North American Continent. - A missile complex in Montana. - A missile complex? April th, . (..)1996 Star Trek: First Contact