You couldn't have a dark and gritty comic in the 50s. Or on TV in the 60s.
I do agree with some of what you said, but I would point out that not everyone thinks comics and TV shows should
be dark and gritty, or need to be in order to be worthwhile. If that's what the comic-buying, TV-watching public had wanted, they would have gotten it. But that's not what people wanted or expected from these media at the time, and it isn't always
what people want and expect from them today. A lot of this stuff isn't just camp in hindsight, it was camp at the time, too. Some people like camp. Some people enjoy farce. Some people don't mind their entertainment not making any pretense of being real, because it's not.