User blog comment:Pandawarrior/Mutiny on the Bounty/@comment-24568337-20151208090545/@comment-3177945-20151211023510

True, but you got to take into account that Luffy is like 19. Jack could be doing just as crazy things for 20 years, destroying everything, being beaten by nobody. And bounties are also made as a danger meter, to warn the comum folk that that guy is dangerous, if you see him, he'll probably be there to kill you, run.