Hulk, in a fit of pique (can’t help it), beats up an old lady who gets in his way, and suddenly his role in the world zigs from hero to villain. Fake distinction. He can always zag back. If they want him to be a bad guy, he’ll do it, but he could do either, or both at the same time. He’s good at them.
To tell the truth (which he always does), he probably likes being a bad guy best. As a hero, he was supposed to save lives, but was anyone except himself really worth it? As a bad guy, he’s free to take lives without remorse, and more or less at random. Which is easier. No pretending. More fun. He’s grown old and fat and is not so great for the hero part anyway. The amazing thing is, everyone still loves him. He understands that. He loves himself.
The only one who won’t admit he loves him and can get away with it is Sam. Sam’s an old buddy. Well, not a buddy exactly. His uncle doesn’t have buddies. More like a family business partner. He runs the corporation, which Sam says is in a gutter fight over what’s left of the Earth’s goods before it all ends catastrophically. His uncle sometimes takes Hulk on as a kind of enforcer. Mr Fixit. Nasty work, but it unleashes him. And it’s for a good cause. Sam calls Hulk a bloated, blank-brained, shit-green abomination, and says he is embarrassed to be anywhere near him, but Hulk knows he’s only kidding. Stupidity is a handicap, Sam always says with a big toothy smile, little tuft of white beard wagging, his finger pointing straight at Hulk like a command: Absolute stupidity rules!
His pal Cap says the Sam may be a ruthless sonofabitch, but he’s also a true-blue patriot who always gave him room to swing, when he could still do that and not fall down. The old fellow’s Captain America costume doesn’t fit him anymore; it bags in the seat, bulges in the middle, hangs like limp rags over his bony shoulders. Thanks to cataract operations, his sight’s back, some of it, but his wits are still missing. Remembers old World War II comic book fantasies better than he remembers five minutes ago. Something off about his smell, too. Good guy, though. Sentinel of Liberty. They both had tyrannical alcoholic fathers and are, consequently, both teetotalers. They understand each other, to the extent that Cap can understand anything. When rage invades Hulk and makes him lose it, Cap’s still there for him. Hero, villain, Cap doesn’t give a shit.