No, the.league through the old game out the window when they started to make rules surrounding interference and ****. Now you cant even touch a receiver without getting a flag.
The bounties is rewarding cheating with money, and essentially says that we don't want to play by the rules, so we'll just take a few shots at a 40 year old guy's legs. Also, the game used to and still does emphasize big hits. The Ravens and Steelers teach it. However, there have always been some codes. It's always been considered nasty to tackle at the knees or focus body parts. Same with late hits.