I think it’s the theme that money is the root of all
evil. The three men were so thrilled at
seeing all that money that they forgot about death and plotted how to keep it
for themselves. In the end, they all killed each other over the money
fulfilling what the old man said about finding death under a tree.
"Snow White and the Seven Dwarfs was to be the first full-length cel animated feature in motion picture history, and as such Walt Disney had to fight to get the film produced."
