I don't see why it's so important as to what a movie's source material is. And who doesn't like Rock N Roll?
But no, that's not the only reason I like it. I dig the characters, the action scenes, the dialogue, the realism, the beautiful cityscapes, how Mann doesn't spell everything out to you, but hints at it.
And yes, people die. DeNiro's character is a professional and a sociopath and told Pacino he wouldn't get in his way no matter what. When the hot head kills a guard they have to finish the rest of them off because like Pacino says, "Why leave a living witness."
If you're so concerned with people being killed why did you like The Way of the Gun? That was basically a poor man's Peckinpah movie. And those two main characters didn't have a single moral fiber in either of them. For the record I thought that movie was solid.
If you don't like Heat you must not like movies very much. That's one of the best movies of the last 30 years.
As I think I wrote earlier on the thread, I used to like Heat, but viewing it again recently, I noticed that the characters were, as you yourself said, too sociopathic to enjoy even on the big screen.
And what you quoted is, exactly, the thing that bothered me. They finish off the money guards, "because why leave a living witness"?
But a living witness of what? They all wear masks and no distinctive feature.
Leaving witnesses that an assault has taken place? Sure, but that point is not in doubt, an assault has taken place, many people around have seen it.
So why finish off the guards, who have not a single identifiable data on them? It makes no sense. De Niro and Pacino should know it makes no sense.
Now, The way of the gun. You're a bit mistaken, as one of the dudes, not Del Toro but the other one, is swayed by the touching pregnant woman, and takes pity on her in the hotel room. Well, funnily enough the broad then tries to fill him with lead, but anyway...
I maintain that it's a great movie as its action scenes, notably against the 2 bodyguards, near the rolling car, are excellent.
Also, I have nothing against people getting killed in movies, providing they are evil people and the scenes are reasonably believable. For instance I enjoyed the Mikkelsen version of the Korean corridor fight shown above in the thread, in Polar. Now that was Rock and Roll, and yes, (bad) people got shot. Even better, all the people shot were evil torturers, and Mikkelsen shoots them as should be done, with one hand. I am fed up with all the Hollywood movies showing people shooting automatic .9mm guns with two hands. Who needs 2 hands to handle a 9mm to shoot an enemy standing within 8 yards? Mikkelsen does it right, he shoots the whole lot just with one arm, no "FBI stance". Like the girl in the Korean movie on Jeju Island.
And yes, Michael Mann's filming techniques, are very professional and good, I don't deny it.
Anyway, I like action, gunfight movies, where the good guys win by keeping their cool under fire, shooting just once or twice, like say, John Wick or Gabin in The Pasha. Just one shot calmly fired is enough, against crazy enemy shooters. If you know of other movies like that, do list them