Is Tarantino a master? Well he certainly is post-modern (if we're still allowed to use this term) in his use of historical film pastiche - he carefully stitches together elements, whether they be stylistic or narrative in nature, culled from the film archives to make a new whole. Now some people say that he is simply a great copier of other people's work (Reservoir Dogs & Kill Bill being great examples - the former uses City on Fire as a template & the later is an amalgamation of numerous asian martial arts movies) & others claim his brilliance for homage.
Is he an original, progressive filmmaker? Probably not, since he isn't breaking new ground, but is constantly looking backwards to the past. Now, this isn't a bad thing & is his greatest achievement, since he educates his audience in the importance of film history & has helped a lot of people [re]discover films that would've either disappeared without a trace, or simply remained undiscovered.
Where would Asian action films, such as John Woo's, be without him? Would their stylised 'ballets of death' have ever become as mainstream as quickly or at all? Hard to tell, but he sure helped!
On another point he introduced me to the magnificent films of Wong Kar-Wai - who IMO is a true modern Master.
Is Tarantino in the same league as say Orsen Welles, who at 25 made Citizen Kane, which has nearly every single type of camera shot used in modern cinema. But he certainly is a master at the niche he has made for himself within the confines of American cinema.
On a quick note, he isn't subverting the 'Hero', he readily applies the 'Anti-Hero' as his main protagonist & this characterisation is a whole lot older in narrative story telling than Tarantino's application of it.
And does 'Art Imitate Life' or does 'Life Imitate Art'? I'll leave that up to you.
As far as the violence debate is concerned, this is very tricky ground since researchers simply can't sit a bunch of kids down & let them watch grotesque horror films or explicit acts of violence. These films aren't meant for children (this doesn't mean that they don't watch them) & research does point to the fact that they can have a lasting effect, but there is no evidence whatsoever to suggest that it will turn them into mindless killers. Sociopathic personalities are said to be 'genetically based but typically has environmental factors, such as family relations, that trigger its onset'.
Having written a PhD on Horror films, the one thing that becomes painfully obvious is that researchers can only determine the effect of such material after the fact & the inquest/research goes on, but there is still no clear cut answer. What we do know is that Fear & Terror are a part of our lives, and that we learn coping mechanisms during childhood to deal with such feelings - parental comfort/explanation/protection & dreams (nightmares) can play a role.
What i would like to say is that making sweeping statements about the effect films have on society is to enter into a minefield & to suggest that society has become more violent as a result is to be completely uniformed about the history of our society. The research that i undertook suggested that the cities that we live in are less violent, than say Victorian times (& they didn't have violent films to watch). I got sidetracked into the Ripper murders & reported violent crime in the Whitechapel district of London - the Ripper murders were by far the worst, but certainly there were some pretty gruesome murders carried out on a daily basis, stuff that would make your stomach churn.
Killings, muggings, rape, child molestation/murder & gangs are not new phenomenon, they are as old as the cities we live - fact.
Why are Human Beings so violent/aggressive towards each other? Well that's the eternal unanswered question, isn't it.
To blame cinematic portrayals of violence as the main cause is to be simply naive & uninformed about the history of our society.
The way the mass media try to scare us into believing a supposed truth is just a smoke screen to hide the fact about the true nature of ourselves & the authorities' ineffectual attempts to stem the problem - scape goating is such an easy option.
Sorry for the rant...