Look saving the dog is the only choice, you can go get another wife and kids and a million gold is so easy to get by that point in the game. My biggest problem with 2 was that I was so evil by the time I realized that I needed to get to a level of good to get an expression to open the last door and I just didn’t want to do it anymore.
3 is easy bad ending or huge money grind for good ending, that is the whole game.
Ok I had to look it up since it had been so long since I beat 2. Take the gold is evil ending but like I said money is easy to get by the end game. The good ending is to leave your family dead and save everyone sacrificed to build the tower, the reward is a statue and knowing a bunch of NPCs that you can’t meet in the game are alive. Love brings back your family and dog, I was thinking that the dog and family were separate. Anyway family feels guilty about the trade but who cares the wife can be replaced, the dog is needed to get rest of the silver keys and other things that you couldn’t access until the end game so dog is the most useful reward, plus being best boy.