Go back and read how violent the Mafia was back in the 1800s and you'll realize the only differences are the externals, such as societal and technological changes. Some bosses were less violent than others, but they have always used violence.

It's funny that what qualifies Amuso as being old school is that he was less violent than Casso. If you read some of the old FBI reports and memos at Maryferrell.org you'll see that the younger mobsters at that time didn't always care for the so-called old school "Mustache Petes" because those old school mobsters were prone to kill someone for any perceived disrespect.