He produced also High Noon, and a lot more films.
It's a Mad x4 World is of course also different. I liked it as a child, but later I thought it was also overblown and much too long. And it wasn't funny anymore. It only tried to be funny. But I haven't seen it for a long, long time. Maybe I would see it now again different.
Kramer wasn't a visual director. Here's quote from a critic, which seems to describe his films very good imo:
"The films he directed are sluggish dinosaurs stuffed with wishy-washy liberal sentiments, tackling huge themes with impotent means. His heart is in the right place, but his camera isn't."
And this guy thinks that the big themes in his films like religion, greed, racism, nazism and others "are all sunk by Kramer's big guns".
And QT insulted Oliver Stone by calling Natural Born Killers a Stanley Kramer like film, only much better directed.
Well, at least Kramer does inspire the people who don't like his films.