Although I don't predict a similar trajectory, I remember Michael Caine in the 1980s did the same thing. Lots of terrible movies. Made a lot of money, though. Seems like Caine felt he'd peaked big time and was taking any role that fronted money....
But Caine got older and found much better roles. His late career is a study in excellence. Cage and Willis probably won't be as lucky, but you never know.
I hope you're not including 'Dirty, Rotten Scoundrels' in there.
Caine was a working class kid who got drafted, spent some time in Korea on the business end of Chinese human wave assaults, survived that, and returned to become one of the unlikeliest actors of his generation. He always said he regarded acting as a job. He was an actor. His job was to act. Big movie, little movie, great movie, dog: he wanted to punch the clock and do a day’s work. He never understood the artistes who would rather sit and gaze at their navels than stay active.