Greg Raymer has his picture on the wall at Binion's Horseshoe as 2004 WSOP
Main Event winner, a nice flashy bracelet, and several million dollars in the bank for two basic reasons...he was lucky/good enough to accumulate a large stack early in the tournament, and he was smart enough to play the "bully" with it late in the tournament. There's a huge difference between making dumb plays because you can afford to do so, and applying pressure to your opponents because it's smart poker.
One of the biggest weaknesses in my own game is my tendency to play tighter with a big stack to preserve it when I should be using it as a bludgeon to pound opponents into submission. If it's not your nature to kick someone when they're down, bullying the table can be a tough trait to learn. But cold-blooded aggression is an absolute must.