On the true characterization of Joker.
I think it is important to point out that the Joker is a genius par excellance. To me, this is his weapon. Scarecrow has his fear gas, Joker has his scheming genius.
There are many bums in alleyways throughout the world with unbridled psyches, no morality and a hankering to invite anarchy into the world. But they just throw a bottle at a telephone pole and get thrown in jail for the night. Joker pulls off the same M.O., but on a Donald Trump scale. This is his genius.
So what does Joker want? In the grand scheme, chaos it seems. Or better, the personal feeling of power he gets from being the person who orchestrated the sweet chaos. This feeling of power can also be shown in his individual personality, where in many instances it is clear he likes to remain perfectly unpredictable to all those around him (a Joker cliche is to blow ANYBODY away, even his own henchmen, at any whim).
So just like Scarecrow is a pathetic soul who finds power in preying on the fearful and innocent through his fear gas
Joker is a pathetic soul who finds power through orchestrating chaos at the cost of the fearful and innocent. He rock-stars it up a little bit, which adds an attractive element. Plus, his knack for getting money helps keep the goons interested. In Morrissons Arkham, the therapist actually even says the Joker isnt technically insane. I like to think this is true. I like to think he is a demon with very specific designs on chaos
very satanic as you said. I think his madness is that he comes up with extremely ambitious schemes and then compromises them with completely illogical twists and turns, showboating his genius. But it is all flawed from the beginning since it's all a sort of adolescent lashing-out style philosophy. This guys a little b**tch. What must be shown to prove that he is a real loser (a villain we are to hate) is his lack of adherence to his own ethos. I think this can be shown on film by making us see instances where he lowers himself to the power high of flat out murder. That for all his megalomaniacal schemes, he really just gets high from the feeling of taking human life. Pathetic. And this is why I see the John Wayne Gacy approach working in this film in tha respect. But also, visually, it just pops off screen. He needs to be more vibrant and freaky looking than Scarecrow in his mask to VISUALLY signify his order on the villain totem pole, which is A#1.
In BB, Ra's was an example of a criminal mastermind with a real world plan but not such an identifiably theatrical persona. Scarecrow was an example of a more theatrical supervillain but his motives were more selfish and on a smaller scope than Ra's. Now, with Ledgers Joker, we will show a supervillain with an even MORE theatrical persona than Scarecrow but ALSO with an ambitious world-scope "plan".
Dang, this is just turning into a stream of consciousness now.