Money Scene - spoiler!
I just watched this movie for the first time last night. Looking to learn more about the plot I accidentally read that the family commits suicide before I sat down to watch.
So, maybe that is why the money flushing scene didn't really affect me. My girlfriend, on the other hand, who was born and raised in poverty-stricken rural China was yelling at the TV screen during the whole scene. It really got a rise out of her that I couldn't believe at the time. After reading up on the movie after watching I understand that scene was supposed to have that effect on people.
The most disturbing scenes for me were the actual execution of the suicides, most importantly the scene with the terribly unsettling breathing. Makes my skin crawl just thinking about that sound!